Hi all:
I am probably missing something really basic, but am stumped on this: I need a lookup from Opportunity to map to Order. If I create the new field as a lookup, it will create a mapping from "opportunityid" to "order_custom_field" but I cannot delete this mapping, nor can I add a mapping of "opp_custom_field" to "order_custom_field" as that field is already mapped.
What am I missing here?