On this page, you will find more information about the most common causes and most relevant solutions for the Emarsys error '2002 - The list of external ids exceeds the maximum size'. Do you need help straight away? Visit our support page.
The emarsys eMarketing Systems documentation indicates that error code '2002 - The list of external ids exceeds the maximum size' is caused by the following problem: "Too many contacts are requested. The maximum number of contacts is limited to 1000.".
Do you think there is another cause for this error? Let others know in the comments.