Salesforce Sync Error: No XML Document Error

[nzegarra98]

Hello, 

I received a Marketo Salesforce Sync Error that myself and my team are not familiar with. The error is as follows:

I was able to find one post about something close to this error, but their issue was with a specific to a lead sync issue, based on a problematic character. You can find that thread here: https://nation.marketo.com/t5/product-discussions/lead-sync-error/td-p/64235

I have ran a test and can see that we are syncing new and existing leads with no issue. I was wondering if anyone is familiar with this lead, and if any action is even needed. 

Thanks!

[sydneym_airtabl]

I am seeing this regularly as well. Not sure how to resolve. It just started in July 2023.

[Tina_Chang]

same here, started seeing this error 3 times now since July, 2023. Is it something in Salesforce summer release that causes the error?

I am the Salesforce Admin. I created some new flows but nothing related to sending XML documents. 

I submitted a case to Marketo and techsupport said nothing she could find and everything looks okay. But then two days later, I got the error again.

[SanfordWhiteman]

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@Tina_Chang wrote:

same here, started seeing this error 3 times now since July, 2023. Is it something in Salesforce summer release that causes the error?

I am the Salesforce Admin. I created some new flows but nothing related to sending XML documents. 

I submitted a case to Marketo and techsupport said nothing she could find and everything looks okay. But then two days later, I got the error again.

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As noted above, you can’t send custom XML documents. Every valid response to a SOAP API call is an XML document. Most likely your flow is erroring out so an empty body is being sent.

[Burns7227]

Hey Sanford, trying to understand a bit more here, are you saying marketo is sending a SOAP API Call, the valid response from SFDC would be an XML Document, which it isn't sending, therefore there is a failed sync between Marketo & SFDC?

[SanfordWhiteman]

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Hey Sanford, trying to understand a bit more here, are you saying marketo is sending a SOAP API Call, the valid response from SFDC would be an XML Document, which it isn't sending, therefore there is a failed sync between Marketo & SFDC?

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Yes, for example if some SFDC automation fails completely, the response body might be simple text, JSON or even empty, none of which are valid XML.

It’s unlikely you’d have a partially-formed-but-invalid XML response — more like it’s not even close to XML because an internal error occurred.

[Burns7227]

Got it, thanks for the reply. So best case scenario is to check any automation on the sfdc side relative to any records sent over around that time?

[SanfordWhiteman]

Right.

[AjayS]

Hi, @nzegarra98 

Can you please check with your Salesforce admin if there is a listener process/workflow/Apex-Trigger through which some custom code from Salesforce sends an XML document? I think the process/flow/Apex-Trigger is failing for some reason on Salesforce. If there is an automation on Salesforce, please check if this is working well.

[SanfordWhiteman]

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Can you please check with your Salesforce admin if there is a listener process/workflow/Apex-Trigger through which some custom code from Salesforce sends an XML document?

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You can’t craft a custom XML document this way. But all responses from the Salesforce SOAP API are XML, by definition.