On this page, you will find more information about the most common causes and most relevant solutions for the Marketo Engage error '1004'. Do you need help straight away? Visit our support page.
The Adobe Systems Inc. documentation indicates that error code '1004' is caused by the following problem: "For syncLead, when action is “updateOnly” and if lead is not found".
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Lead not found
Do you still have problems with this error? Try one of the quick fixes below or leave a comment.