Description: This solution describes how to resolve the Error: Unhandled error in destination connector while processing record. Error Message: An item with the same key has already been added.
This error occurs when exporting to Luminate Online from The Raiser's Edge and the same field in Luminate is mapped twice. For example, accidentally mapping two different fields to ConsId - Match.
Each LO field should only be mapped once. Examine the mapping carefully and adjust the fields.
Refer to the ImportOmatic User Guide for additional information.