I created an object called a "Decision" and a related object "Category" in v3.9.5. Category has a record name field and a cat_code field that will not allow duplicates. I then created a few category objects. When I import from XLS a list of Decisions, I tried mapping the Category to the cat_code field. Import works, but no relationships are made between the two objects. The docs don't cover this situation specifically, but it seems like it should work, no?
I'll investigate ASAP.
My apologies - it works. The map was defaulting to the previous picklist field instead of the relationship. After I removed the picklist field, it worked.
Map tries to match columns and fields by matching columns' headers and fields' names. Please also make sure that both Unique field and spreadsheet columns are selected (I need to add this validation to the page).
Thanks, and sorry for the alarm.