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Overview A blocklist is a database of IP addresses or domains that have been associated with the sending of unsolicited commercial email or spam. Internet Service Providers (ISPs) and business email networks use information from blocklists to filter out unwanted email. As a result there can be a drop to inbox delivery rates if the IPs or domains involved with sending email are listed on a blocklist. Marketo’s Email Delivery and Compliance team monitors blocklist activity on our IPs and domains daily. When an impactful listing occurs, we reach out to the blocklist, attempt to identify the sender that triggered it, and work with the blocklist organization to get the listing resolved. There are thousands of blocklists, most will not have a significant impact on your delivery rates. Below, we have compiled a list of the blocklists that commonly appear across our sender ecosystem. Each blocklist has been grouped into a top tier (Tier I) by most impactful, to the bottom least impactful tier (Tier III). These may have little to no impact across our sender network. Tier I Blocklist Spamhaus (SBL) Impact: Spamhaus is the only blocklist that we categorize as a Tier I for a reason: it has by far the greatest impact on delivery. It is the most well-respected and widely used blocklist in the world. A listing at Spamhaus will have a negative effect on your ability to deliver emails to your customer’s inbox and can cause bounce rates of over 50%. Evidence suggests that most of the top North American ISPs use Spamhaus to inform blocking decisions. How it works: Unlike many blocklists, Spamhaus lists senders manually. This means they are proactively watching sender activity, collecting data, and base listings on a number of variables. Most commonly senders are listed for mailing to spam trap addresses that Spamhaus owns. Sometimes Spamhaus will list senders based on recipient feedback as well. Next Steps: Please note that every Spamhaus email can be quite different depending on the information provided and the nature of the listing. Because Spamhaus has multiple types of listings, the remediation steps are based on which type of blocklisting has occurred. We have listed the most common types to affect Marketo customers, from most to least impactful. Impact can range from a full block of top severity, to a partial block that is less severe (CSS Data, DBL). If remediation isn’t performed and the problem not addressed, these listings can increase in severity and turn into a full blocklisting. Spamhaus Blocklistings Types SBL (full blocklisting) Considered the most impactful. Remediation steps: Our team monitors closely for Spamhaus listings. Once alerted to the listing, we send an email notifying the customer, and reach out to the Spamhaus contact to start the remediation process. Only a Marketo delivery team member should be in direct correspondence with the Spamhaus contact, to speak on behalf of the customer, and to relay their questions and instructions, ensuring quick resolution and reduced impact. Senders that trigger this listing on a shared IP range will be moved to a more isolated, penalty range (IPB), so as not to impact the other shared senders. Those affected on a Dedicated IP, only impact their own sending and will not be moved. However, depending on the severity of the issue, our team may need to revoke a customer’s ability to send any emails until full resolution. The listing will last until Spamhaus is satisfied that the offending sender has taken the appropriate steps to mitigate the problem. SBL CSS Customers are alerted of the listing with an email containing all the information needed to immediately begin the remediation process. This is part of an automated trigger listing, that allows for a customer to delist directly on the Spamhaus website, after they’ve completed remediation. Remediation steps: Customers will go to the Spamhaus IP lookup website, at https://check.spamhaus.org, where they can check on the status of their IP and continue to monitor it in real time, until it is no longer listed there. Follow the remediation and delisting instructions provided, and check for specific details in the blocklist notification email. DBL (Domain blocklisting) Customers will receive an email notification alerting of the company domain being listed. The email will contain specific information to help narrow down and identify which email source likely triggered it within Marketo. It’s important to note that any email sent from outside of Marketo, that contained the company domain, is suspect. This means, if the sender uses multiple IPs and/multiple email platforms, then any of those could be the source. Remediation steps: Follow the detailed instructions in the email, which will also provide a link to the Spamhaus Domain reputation checker webpage, to check the real time listing status of the affected domain. Once the email source is identified and cause addressed, this customer will follow the online instructions to request to be delisted. Tier II Blocklist SpamCop Impact: SpamCop is not used by any of the major North American ISPs to inform blocking decisions, but it makes it to the Tier II list because it can have a significant impact on B2B email campaigns. SpamCop is considered a Tier I one blocklist for B2B marketers but a Tier II for B2C marketers. SpamCop is a dynamic IP blocklist, that can affect a single IP or a subset of IPs Typically, the block will automatically lift within one business day, but can take longer for relisted IPs. To have triggered a SpamCop listing likely means the sender has a list management problem that should be addressed. How it works: SpamCop lists IPs for one of two reasons: Either the email hit SpamCop spam trap addresses OR A SpamCop user has reported the email unwanted. Most of SpamCop’s spam traps are previously valid addresses that have not been active for 12 months or longer. Remediation steps: If you are seeing a significant number of bouncing emails caused by a SpamCop blocked IP but aren’t sure if your email activity triggered the listing, first identify whether you are sending on a shared sender network or not. If sending from a shared IP range when this occurs, you or any other customer sending from the same network may have contributed to the IP block. This IP block will automatically get dropped within a business day. For those on a Dedicated IP that trigger a listing, refer to the above remediation steps and resources, to address the list management issue. Tier III Blocklist (Low/ No impact ) These are considered the lowest tier and therefore cause the least impact across the Marketo sender ecosystem. Some of these blocklists were more impactful at one time, while others are only impactful based on the sender region (Manitu). Others still can suddenly flare up. There are also many blocklists that are ignored (0spam), and are not taken seriously because they do not provide any means to delist once on the list (NoSolicitado) or that they charge money to have the listing removed ( UCEPROTECT ). The pay-to-delist model is not well respected in the email industry. When using blocklist tool checkers, such as MXToolBox, many blocklists will appear, but very few are relevant. Here is our selection of Blocklists you may come across that are least impactful: Project Honey Pot SpamAssassin URIBL/SURBL DrMX PSBL 0spam HostKarma Ascams Lashback Barracuda Trendmicro Inc. Cloudmark Proofpoint Invaluement ISP Blocklists Some ISPs use internal blocklists to make blocking decisions. Examples include AOL, Yahoo, Gmail, Outlook and Hotmail. If your IP is being blocked by one of these networks, and those networks have a large presence in your lists, a block of this kind could have a noticeable negative impact on delivery. Marketo monitors for significant ISP blocks. Those experiencing deliverability issues with emails not making it to the Inbox and bulking in the spam folder may benefit from additional services with our Email Delivery Consultants. Remediation Steps: Email Delivery Compliance Team works to resolve any ISP blocks. ISP blocks are are usually resolved or lifted within less than 24 hours of a delisting request. Customers experiencing significant blocks for Microsoft domains (outlook.com, live.com, microsoft.com), can submit a request to the delivery team to seek mitigation on their behalf. Additional Resources: Blocklist Deep Dive Abuse Report Deep Dive What is a spamtrap, or spam trap, and why does it matter? Blocklist remediation Blocklist resolution flowchart Successful lead reconfirmation What is a blocklist?

There are thousands of blocklists out there and all of them operate a little differently and all have varying levels of reputation. There are only a dozen blocklists that really can impact delivery. The blocklist that requires the most work from you when you request delisting is Spamhaus. Spamhaus is a trustworthy blocklist and if you are listed at Spamhaus you have made a mistake that will need to be directly addressed before the listing can be removed. SpamCop is considered a tier one blocklist for B2B marketers but a tier 2 for B2C marketers. Marketo responds to all SpamCop listings; researching to identify the source so we can work with the customer to educate on best practices and prevent future listings. Some blocklists require that you pay a fee to be delisted. These blocklists are not favored in the email community because they use this tactic. For the most part, Marketo advises our customers not to mind alerts of being listed on a pay-to-delist blocklist. These blocklists tend to have minimal impact to your deliverability. For the most part blocklists are dynamic and resolve themselves in around 24 hours if the issue resolves. If the problematic sending continues, of course, the blocklist will continue to keep you listed until the problematic sending ends. If you are blocklisted, your main concern at that point should be making sure it doesn't happen again. For steps on how to identify the problematic data source and improve your list hygiene in an effort to avoid blacklist issues, see our blocklist remediation article.

We manage our network to provide our customers with the highest server availability and best deliverability possible. Marketo Engage has a strong anti-spam policy and a team that handles blocklist notifications in our IP space and spam complaints. We also cooperate with most major anti-spam providers and ISPs. In addition, we maintain feedback loops (FBL) for many of the most popular email providers. For more information on FBLs and ISPs with whom we have this arrangement, click here. Blocklistings are usually caused by sending mail to a spam trap email address. For an explanation on what causes blocklisting, click here. When we receive notification of a blocklisting, we react in two ways. First, we go through the procedures to remove the listing from that blocklist as soon as possible. Second, we determine (if possible) which of our customers caused the blocklisting and work with them to improve their mailing lists to prevent a reoccurrence in the future. This is usually a cooperative process, most frequently, a review of mailing policies and strategic pruning of a customer’s lead database will return them to best practices. Blocklists: Frequently Asked Questions Is this article helpful ? YesNo

If you have submitted a support case and you feel that the case was improperly handled or that the solution being offered does not meet the communicated Marketo support expectations, then we would welcome the opportunity to look deeper at your specific support engagement and work with you on delivering a better resolution. Caution: If the item you're looking to escalate is related to a Production Down incident, please call the support line for your region to receive immediate assistance. Support Manager escalations are only handled during normal business hours. The phone numbers for each region are listed below, follow the prompts for P1: Americas: +1.877.270.6586, Direct: +1.650.376.2303 Europe, Middle East, & Africa: +353 (0)1 242 3030, UK: 0800 151 3030 Asia Pacific: +61 2 8031 8188 Japan: +81.03.4233.9014 How to Escalate: Step 1. Navigate to the "Case Management" area of the support portal either by mousing over the Support tab and selecting "Case Management" or clicking the Support tab and click on the “My Case Management” button. NOTE: You will need an open or recently closed case in order to escalate to support leadership. This is a article attached image Step 2. From here you will need to click on either an open or a recently closed* case: This is a article attached image *Support Cases that have been closed for longer than 10 days are no longer eligible to be re-opened and we ask that you open a new support ticket for your current issue prior to escalating to a Support Manager. We ask that you have an open support ticket for a Support Manager to be able to address specific issues. Step 3. After selecting a case, click on the Escalate to Manager button: This is a article attached image Step 4. A pop up will display and you will need to the purpose for the escalation and click on the “Escalate” button. This is a article attached image Once your support escalation case has been submitted a Marketo Support Leader will contact you within 1 business day of your support region's support hours to address the issue.

Issue Clicking "Automatically copy over from HTML" or "Copy from HTML" in the Email Editor fails to copy the contents over to the Text Only version of the email. Solution This can occur if there are no editable sections in the email asset. By default, Marketo automatically copies the text content of any Rich Text element that’s in your email over to the Text version. Marketo defines a Rich Text element inside of an email template as a section using either mktEditable or mktoText classes. If the email's HTML does not contain either class, then no content would automatically be copied over. Here is additional documentation related to Email Text Versions: https://experienceleague.adobe.com/docs/marketo/using/product-docs/email-marketing/general/creating-an-email/edit-the-text-version-of-an-email.html?lang=en A quick workaround would be to manually copy and paste the content you wish in the Text Version, and in the future build/use templates to make emails with editable sections.

Issue Multiple alerts are sent from the same campaign. Solution Recognize that Send Alert functions at the person level, triggering an alert for each individual in a campaign. Utilize Marketo's reporting to send a consolidated notification: Create an Email or Campaign Performance report. Tailor the report settings for the specific campaign. Schedule the report to be sent after campaign completion. This method provides a summarized notification, avoiding the repetition of alerts per campaign member. Alternatively, use Send Alert for individual notifications where needed, such as: Alerting a lead owner of a form submission. Triggering personalized alerts for specific lead activities.

Issue Files uploaded to Marketo's Design Studio, like PDFs or image files, are assigned an HTTP URL instead of HTTPS. This discrepancy can trigger security warnings in emails, as modern browsers and mail clients expect secure links that match the SSL certificate's domain. Solution To address this issue, follow these steps: Ensure you have a custom landing page rather than the default domain. See under Admin > Landing Pages. Apply an SSL certificate to any new domains added. Marketo won't do this automatically. You can contact Marketo Support to request an SSL application for your domain. Provide necessary details. After SSL implementation, send test emails to check for proper HTTPS encryption and the absence of security warnings. By implementing these actions, asset URLs and landing pages in Marketo communications should be secure.

Issue Learn how to design smart campaigns using triggers and filters within the same campaign. Create a campaign that reacts to several different initiating actions or conditions, such as a change in lead status, form fills, or change in data values. Find out whether triggers and filters can be used together, how to combine them effectively, and how to apply advanced filter logic to achieve the desired workflow. Solution Marketo allows the combination of triggers and filters within a smart campaign. Triggers are considered as initiating events that start the campaign, while filters are used to further refine the selection of leads based on specific criteria. Triggers are always evaluated with an OR logic, meaning if any trigger event occurs, the campaign will consider it for further action. Filters, on the other hand, can be evaluated using AND logic, OR logic, or advanced logic, depending on the requirements. Steps for smart campaign configuration: Combining triggers and filters: In a smart list within a smart campaign, you can have multiple triggers. Each trigger is treated with OR logic, meaning if any of the triggers occur, the campaign will proceed to evaluate filters. Filters are then applied to further refine which leads or records should move through the campaign flow. By default, without advanced logic, filters are evaluated with AND logic, meaning all filters must be true for a lead to qualify. Using advanced filter logic: Advanced filter logic can be used once you have three or more filters. You cannot use advanced logic to change the inherent OR logic of triggers. Filters can be combined using AND, OR, and other complex logical conditions, but this logic applies only to filters, not to the combination of triggers and filters. Understanding the distinction between triggers and filters: Triggers are based on activities or actions, such as Data Value Changes or Person is Created. Filters are based on properties or criteria of the lead records, such as Product Interest = C or Field A = B. A trigger can only occur once per lead action, whereas filters can continuously apply to lead records based on their properties. Creating complex logic: To create a logic such as (Trigger1 AND Filter1) OR (Trigger2 AND Filter2), you would set up two separate smart campaigns or smart lists, as within a single, smart list, triggers cannot have AND logic between them or between triggers and filters. Troubleshooting smart campaigns: If a smart campaign is not running as expected, review the combination of triggers and filters to ensure the logic is set up correctly. Remember that a trigger must occur for any filters to be evaluated. Verify that the filters are correctly defined to match the leads you intend to target after the trigger event. By understanding and applying these principles, you can effectively manage smart campaigns in Marketo, ensuring that the right leads are targeted with appropriate actions based on both their activities and their attributes.

Issue Leads were uploaded into Marketo with the wrong opt-in date and time, which also synced with Microsoft Dynamics 365. Solution To correct the opt-in date and time, do the following. Update information in Marketo. Prepare and upload a corrected list for the leads. Confirm the opt-in field in Marketo is not blocked from updates. CRM Sync The corrected data in Marketo will auto-sync with Dynamics 365. If auto-sync fails, manually update the opt-in dates in the CRM. Additional Steps Check for any automated actions triggered by the wrong data and rectify them If needed. Confirm data accuracy in both systems after updates. Back up data before mass updates to prevent data loss.

Summary When attempting to approve snippet error Access Token is Invalid appears. Have the customer sign out and sign back in. Seems maybe they got logged out somehow. Issue When attempting to approve a snippet you receive "Access Token Is Invalid" error. Solution The error can occur when your internet browser logs you out of Marketo in the background. To resolve, sign back in to Marketo and retry the approval.

Issue New leads created through form submissions in Marketo are not being registered by the "Fills Out Form" trigger in associated campaigns. Solution To address this issue: Verify Referrer Value: You'll see a referrer value in the Fills Out Form. Confirm that the referrer value in the Fill Out Form activity aligns with the campaign trigger criteria. Check Configuration Changes: Inspect any recent changes to URLs that may affect form submissions. Communicate these changes to the Marketing Operations team for proper adjustments. Review Campaign Setup: Ensure the campaign is set up to include the specific form and that no filters exclude new leads. By following these steps, you should be able to resolve the issue and have new leads correctly trigger the Fills Out Form activity in Marketo campaigns.

Issue Tracked links in emails resolve to "Your connection is not private", or other security warnings in the browser, when clicked. Solution The browser is expecting the branded link domain to be secured with a SSL certificate. Subscriptions without Secured Domains for Tracking Links: Please contact your Customer Success Manager to discuss purchasing a subscription to Secured Domains for Tracking Links. Subscriptions with Secured Domains for Tracking Links: Please contact Marketo Support to provision a SSL certificate onto your tracking link domain. More information can be found here Overview & FAQ: Secured Domains for Tracking Links

Issue How to check what version of the Marketo Solution you have installed in your Microsoft Dynamics CRM environment. Solution Navigate to the Settings section of Dynamics, and then to the 'Solutions' menu. Under the 'Solutions' menu there is a list of all installed solutions called 'All Solutions', and once you have located the Marketo Solution in there, its version number will be listed in a column beside its name. Who This Solution Applies To Users with Microsoft Dynamics integrations.

Issue When attempting to move a folder with a program into a different workspace, the below exception is thrown: Rule is incomplete, '<Field Name> is...' requires value In the below example, the field name is 'New Status ID': Solution This exception is thrown when a smart list within the Folder contains an incomplete filter. To resolve, you can either: 1. Remove the Smart List filter that is incomplete 2. Set a value for the Smart List filter

Issue When using Interactive Webinars, if a host changes the layout, previously on-camera speakers must switch on their cameras again. Is there a way to keep the camera always on when you move from one layout to another? Solution This is not supported due to privacy concerns. If a video pod is not present in a layout, the camera is turned off. If a video pod is present in the next layout again, the presenters need to switch on the camera again to consent to their video being shown again to everyone. There however is a workaround to this. A video pod can be placed on the poll pod layout but it can be positioned so that it is behind the poll pod. The size of video pod does not matters on this layout so it can be reduced so that it is completely hidden behind the poll pod. This way the video pod will be hidden and not visible to participants but since the video pod is present, the camera will not be turned off on this layout. On switching to the next layout (Intro), presenters will not need to turn their cameras on. However, they need to be cautious as their video will go live as soon as the intro layout goes live. Additional information on Interactive Webinars can be found here: Best Practices for Interactive Webinars Designing Interactive Webinars

Issue You may see the error "Program with name already exists" when saving a program name, and this is because Marketo requires each program name to be unique. There may be a scenario where you are trying to re-name an existing program to correct capitalization. (For example, your program is currently called "Test program" and you want to re-name it to be "Test Program", but you get this error message.) Solution As a workaround to resolve this: 1) Re-name your program with an extra character at the end, essentially to temporarily make it a different program name 2) After that, re-name the program back to your original desired program name and it will save

Issue When retrieving result sets from the /rest/v1/activities.json end-point using a Paging Token, the result set returned by the API appears to be less data than what is in the Marketo UI. In this scenario, we're going to explore how and why Paging Tokens work when utilizing them in REST API calls. SCENARIO Say we wanted to grab all 'Send Email' activities (activityType = 6) that have occurred since 2024-04-12T12:00:00Z, and we're planning to pull these activities every two hours, and increment our paging token every two hours prior to making the /activities.json call to obtain the latest data. Current Time Apr 12, 2024, 8:00:00 AM (MST) == 2024-04-12T14:00:00Z What We Want 1. Retrieve all Send Email activities SINCE Apr 12, 2024, 6:00:00 AM (MST) == 2024-04-12T12:00:00Z We would start by retrieving our Paging Token with the sinceDateTime parameter = 2024-04-12T12:00:00Z: /rest/v1/activities/pagingtoken.json?sinceDatetime=2024-04-12T12:00:00Z Our response would contain the nextPageToken representing the sinceDateTime: { "requestId": "1607c#14884f3e74e", "success": true, "nextPageToken": "RW6ZK46LKV36BMJ2QARX3BFZHQNHRVPPEW4IZVEELI45V2OH6RCA====" } We would then pass that nextPageToken into our GET /rest/v1/activities.json end-point, as well as our activityTypeId = 6 to target all 'Send Email' activities that have occurred since 2024-04-12T12:00:00Z. /rest/v1/activities.json?nextPageToken=RW6ZK46LKV36BMJ2QARX3BFZHQNHRVPPEW4IZVEELI45V2OH6RCA====&activityTypeIds=6 After paging through all of the results (now leveraging the returned nextPageToken from the /activities.json end-point to page through all results), we've returned 15,000 Send Email activities. PROBLEM We know that, from our Marketing team, that we were expecting ~20,000 email sends since 2024-04-12T12:00:00Z. So why does the result set appear to be missing 5,000 records? Let's examine this further. 'Send Email' activities aren't committed to the Marketo database until the message has successfully been sent from our mail servers. Prior to that, the email is queued, awaiting it's launch to it's receiving mail server. This can present a delay from the time the email is sent, to when the activity is recorded to the Marketo database. For example, say there were two campaigns sending 10K emails each: First Campaign Send: 2024-04-12T12:30:00Z (30 minutes after our sinceDateTime token) Second Campaign Send: 2024-04-12T13:45:00Z (110 minutes after our sinceDateTime token, 10 minutes prior to when the call was made) While the first campaign send is most likely accounted for in the database (Send Email activities have been committed), Campaign #2 is still processing and sending out all 10K emails in the background. For this scenario, Marketo has only committed 5K out of 10K email sends to the database at the time the call was made. Without noticing the missing data, you repeat this process two hours from now, incrementing your sinceDateTime token by two hours as well, assuming you'll get all the new Send Email activities for the past two hours. This would now lead to you missing the 5K Send Email activities that were still being processed, but not yet committed to the database. SOLUTION The nextPagingToken returned in the /activities.json end-point is position based, and can only pull data that has been committed to the Marketo database, which inherently changes as records are being processed. If, for instance, you made the original /activities.json call at (Apr 12, 2024, 8:00:00 AM (MST) == 2024-04-12T14:00:00Z), and used the same sinceDateTime token 5-10 minutes later (Apr 12, 2024, 8:10:00 AM (MST)), you would now notice that campaign #2 has fully finished it's processing AND committed the 'Send Email' activities to the Marketo database with dateTime stamps less than Apr 12, 2024, 8:00:00 AM (MST). So, what's the best way to ensure you're retrieving all the data? Solution #1 Increment your sinceDateTime token based on the MAX(created_at) dateTime returned in the latest result set, rather than incrementing it based on an interval (every two hours). This would help ensure you're not missing records that were processing, but not yet committed to the Marketo database. Solution #2 If the data you're retrieving does not need to be live, we would recommend using the Bulk Extract API to pull this data at a lower frequency (such as twice per day 12AM & 12PM). This would greatly decrease the chances of missing records that weren't committed to the database.

Summary Learn how to monitor the synchronization status between Marketo and Salesforce to ensure data consistency and operational efficiency. Issue You want to check the Salesforce sync status to maintain data alignment and workflow effectiveness. Solution Marketo now offers a user-friendly, built-in tool to monitor the Salesforce sync status. To use this tool: Log into Marketo. Go to Admin > Integration > Salesforce. Click on the Sync Status tab.

Summary Learn how to resolve the issue where Marketo only recognizes the first LinkedIn Lead Gen form and does not recognize any additional forms. Issue Marketo only recognizes the first LinkedIn Lead Gen form and does not recognize any additional forms. The problem persists even after disconnecting and reconnecting the LinkedIn account with Marketo. Solution To resolve the issue where Marketo does not recognize multiple LinkedIn Lead Gen forms, follow these steps: Verify submissions: Ensure that each LinkedIn Lead Gen form has at least one submission. Marketo will not display a form in the dropdown lists for triggers or filters unless it has been filled out at least once. Preview and test the form: Go to the LinkedIn campaign and use the ad preview feature to fill out the Lead Gen form yourself. This step is necessary for Marketo to recognize and sync the form. Check for form activity: Once the test submission is complete, check the activity log in Marketo for the test record. Look for the LinkedIn Lead Gen Form Fill activity, which should be present to ensure that the form appears in Marketo dropdowns. Using Marketo smart list: If you want to check the performance of the form, use a Smart List in Marketo with the filter Filled out LinkedIn Lead Gen Form and set Lead Gen Form Name to any. This will show submissions for all LinkedIn Lead Gen Forms with at least one submission. This filter can also be used in reports to segment people based on form submission activity. Reauthorize connection: Remember that the authorization for the LinkedIn connection in Marketo is valid for a limited time. To avoid disruptions, set a reminder to re-authorize the connection periodically before it expires. Additional information: Marketo integrates with LinkedIn Lead Gen forms to capture lead information directly from LinkedIn. Regular monitoring of the LinkedIn connection in Marketo is essential to maintain a seamless integration. By following the above steps, you should be able to resolve issues with Marketo not recognizing multiple LinkedIn Lead Gen forms and ensure all forms are properly synced and can be used within Marketo for lead generation and reporting purposes.

When a new lead enters Marketo from a form fillout or List Import, Marketo automatically searches for a lead with the same email address. If that lead exists, the existing lead is updated instead of creating a duplicate. However, Marketo does not automatically de-duplicate leads who are already in your database. This is especially a problem for new customers who often have many duplicate leads in their database. Also, if you add a new lead directly into Salesforce (through the Salesforce import process or web-to-lead forms) Salesforce will create a duplicate lead that gets synced into Marketo. When this happens, you can use Marketo to find and fix those duplicates. How Marketo handles duplicates The primary consequence of duplicates is that one lead record could have the most relevant information about that lead while your sales rep is looking at the incomplete duplicate. For example, say that you have a duplicate lead in your database and that lead fills out a form on your website. Marketo generally updates the lead record that was most recently updated. In another case, say you run a campaign to email your lead database and two duplicates are included in your campaign run. Marketo automatically detects the duplicate email address and ensures that only one email is sent to that lead. That Email send and subsequent activity will be attributed to the Lowest Lead ID. When you merge leads, their entire history is combined, and you can control which fields are kept in the final lead. You won't lose any information or tracking. Most customers have many duplicates when they start with Marketo. After initially de-duplicating your database, the work to keep your database de-duplicated is usually very small. You should work to stop the sources of duplicate leads and make Marketo your single point of entry for all new leads. Finding Duplicates Go to the Lead Database section of the app. Then click on the Possible Duplicates list in the tree. Click the grid header that says Email. You can sort by email address to see the duplicates next to each other. Selecting multiple leads Select two leads that have matching email addresses. You can do this by holding the "control" key down while clicking on the two different leads. (You can merge more than two at a time, but start with two.) Tip: Sometimes clicking too fast will make the grid select incorrectly. Clicking a little slower usually helps. When you have two rows selected or highlighted, click the Merge Leads button in the toolbar. The Merge Dialog A dialog will appear showing you all the fields that differ between the two leads. You need to pick which values to keep in the merged lead. Not every field is displayed -- just the ones that you need determine appear. By default, the values from the most recently updated lead will be selected (with a check and highlighed yellow). To pick a different value for the merged lead, click the checkbox next to that value. If you want to enter your own values for the merged lead, click the Custom field for that row then type in your own value: When you're done, click Merge. The winning values will be kept in the merged lead; the other values will be discarded. Important: Clicking merge will instruct Salesforce to merge the records properly. All Salesforce and Marketo activities are merged into the remaining lead. Nothing is lost. Campaign History is also kept. Duplicate pattern matching You will notice that the Possible Duplicates list has a Smart List tab. Click on the Smart List and you will see it's using the "Possible Duplicates" filter on the "Email Address" field. You can change this filter to search other fields for duplicates. Click the little green plus in the definition. Note: You should use only one Duplicate Fields filter in your Smart Lists. If you want to check multiple fields, always use the green plus button to add multiple fields; don't drag in a second filter. When you change the Duplicate Fields filter, you should sort the Leads grid by the column you're checking to put the duplicates next to each other. Marketo Merge Program Marketo offers a service for mass-merging of duplicates. Please contact your Customer Success Manager to inquire about this service. What happens when I merge two leads in Salesforce? When you merge leads or contacts in Salesforce, Marketo will also merge the matching leads in your lead database. See this article to learn more about how that works: https://docs.marketo.com/display/public/DOCS/Find+and+Merge+Duplicate+People#FindandMergeDuplicatePeople-EffectinSalesforce

Knowledgebase

Maintaining a Directory of Leads Bouncing Emails

Top Blocklists - What You Need to Know

How do blocklist issues get resolved?

Top Blocklists - What You Need to Know

How does Marketo respond to blocklisting and spam notifications?

Escalating a Support Issue

HTML Email Not Copying Over to Text Only Version in Editor

Multiple alerts sent from the same campaign

Resolving Marketo unencrypted asset URL issue

Understanding smart campaigns: Triggers and filters

Correcting incorrect opt-in date-time in Marketo and CRM

Access Token Is Invalid Error When Attempting to Approve Snippet

"Fills Out Form" for campaigns not triggered when new person created during form fill

Tracked Email Links Return "Your Connection Is Not Private"

Check the version of your installed Marketo Solution in Microsoft Dynamics (MSD)

"Rule is Incomplete" Error When Attempting to Move Program Into New Workspace

Adobe Interactive Webinars - Changing Layout Prompts Speakers to Switch On Their Video Again

Program with name already exists error

REST API Paging Tokens Use Case

Monitoring Salesforce Sync Status in Marketo

Marketo not recognizing multiple LinkedIn Lead Gen forms

Working with Duplicate Leads