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Marketo creates duplicates and removes SFDC ID in the old record

Question asked by 05fe0272622e31962090a0437e5f21215e07354a on Jul 12, 2017
Latest reply on Jul 12, 2017 by Josh Hill


I'm getting very confused here. I'm trying to clean my Marketo/Salesforce marking as invalid the old contacts with hard bounces, etc.

I created a smart campaign with those people and, in the flow, I did 3 things: create a task explaining that, change a checkbox to false and change the status of the lead/contact to invalid.


Now that I've run the campaign, Marketo has created duplicates for some of the leads and I have no idea why. It looks like Marketo:

- Duplicate the record in Marketo (only the info in the fields, not tasks, etc.)

- Delete the SFDC ID of the old record

- When it syncs with SFDC it creates a new lead there.


- I end up with 3 versions of the same lead:

     - One in Marketo with no SFDC ID so it's not linked to anything

     - The same one in SFDC but not linked to Marketo as Marketo doesn't have the SFDC ID

     - The new one in both SFDC and Marketo and synced, but without the old info, just as a new created record.


- I have to merge the 2 duplicates in Salesforce keeping the info of the old one.
- I can't merge the 2 duplicates in Marketo because one of them doesn't exist in SFDC (I guess that's the reason, I just get an error when I try), so the only way to get rid of duplicates is by removing the old one (with old information) and leave the new one that is the one linked to Salesforce.


I have to add that Marketo did not change any of the 3 steps in the flow in the Salesforce leads, only in the one that doesn't have the SFDC ID in Marketo.


It's not the first time that happens to me so I'm trying to find the reason to avoid doing the same in the future?

Does anyone have any idea why Marketo is creating that duplicate and removing the SFID in the old one?  That lead was in Salesforce and Marketo before I run the campaign.