Transform map reference field mapping configuration not working as expectedDescriptionField maps establish a relationship between a field in an import set table and a field in the target table.The field map determines what values from the source table the transformation adds to the target table.When the target field is a reference field, the transform map needs a way to match incoming source values to existing records in the reference field's source table.Since most imports do not provide a 32-character sys_id value, you must specify a column from the reference field's source table that contains values that match the incoming source values. When there is a matching record, the transform map stores the sys_id of the matching record in the target field. If there is no matching record, the transform map creates a new record in the reference field's table and stores the sys_id of the new record in the target field. If you leave this field blank, the transform map looks for matching values from the display value column of the reference field table. This KB talks about a scenario , when the source field value doesn't match the value of the referenced field in the field mapping, platform picks the field on the referenced table with display value as true and then creates or updates this field on target record with respective values. Steps to Reproduce 1. Create a field mapping for a reference field in a transform map, with a Referenced field value name as some field name other than the display value as true field of the referenced table.2. During transform, if the source field didn't match the Referenced field value which is provided in the field map, transform will try to map the source to the target field which has display value true on the referenced table and then updates the same in the referenced field on target table in field mapping WorkaroundNo Work Around. Though the target field in field mapping was supposed to be blank in this context , the field on the referenced table with display value as true is considered and updatedRelated Problem: PRB1519504