Hi Tristian,
I believe you are using a File Loading activity for pulling in records from external table.
Error message says that for insert/update in recipient, reconciliation has been set to make use of targeting dimension directly.
But the incoming population to Update data activity is not having any targeting dimension associated with it. Thus causing the error.
You will have to switch to reconciliation keys for identifying that a record exists or not in recipietn schema.
For more inputs please attach screenshots of following:
- Configuration of your Update data activity.
- Schema of the input transition to update data activity.
Regards,
Vipul