Hi 3N1GM4,

That suggests that, before running the macro, there's more than one paragraph break between the tables that are supposed to get joined. That, in turn, suggests you have an extra paragraph break (or a space before a required paragraph break) in/after the mergefield in your mailmerge main document. Fix that and it should work OK.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Thanks for the advice macropod, but I can't seem to find the offending paragraph break in my mailmerge main document.

In fact, I cannot find any paragraph breaks in the document around my tables which I can remove without it causing the layout to break completely (it starts to move double quote characters into the actual cells of my tables if I do, which stops the merge from working at all).

Is there any particular method or process I can follow to troubleshoot this? My screenshot in my OP shows a representation of how my mailmerge main document is laid out.