This error appears in the Adapter Log:
The error message indicates a problem accessing GP web services. However, when you ‘Test Settings’ in the Adaptor the user gets the message ‘Test settings succeeded’.
To understand why the error is being generated navigate to Start - Administrative Tools - Dynamics GP Web Service Exception Management Console Once the snap-in loads, expand Web Service Exceptions, expand All Exceptions, then click on System Exceptions as per below shows.
Then double click on the exception, hit "View Exception Detail...", then "Inner Exception Detail..."
The above error indicates the ABCCODE isn't valid for my item. In the GP table where ABCCODE is stored (IV00101.ABCCODE), some items had an ABCCODE = 0. The valid values for ABCCODE are 1, 2, 3 and 4. (Under normal circumstances ABCCODE would not be = 0, but in this particular case the items were imported, and the import process did not update ABCCODE with a valid value). Once this was corrected the item is successfully brought into CRM and the error was no longer.
In summary, if you receive the above mentioned generic error, check the Dynamics GP Web Service Exception Management Console for a more descriptive error of the issue.
Thank you EMEA Dynamics CRM Team