The Update query runs when I do a MAKE TABLE on the second query and use the TEMP table instead of q_ADMIN_MergedC ontactIDs.
Code:
UPDATE Temp_UpdatedContactIDs INNER JOIN t_RelatedContacts ON Temp_UpdatedContactIDs.Old_ID = t_RelatedContacts.Contact_ID SET t_RelatedContacts.Contact_ID = [Temp_UpdatedContactIDs].[New_ID];
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