I imported 2 datasets and joined. Before joining, I used unique tool to segregate unique and non-unique. The join output is only showing 1 record. Expectation is 8 records. Attached "ACH-CUSTOM" and "precision_mapping_" files. For ACH_CUSTOM, I configured Output file name as field as "File Name Only" in order to join with precision_mapping's "Raw Table Name" key. As you all can see, both files have 8 records each so the expectation from Alteryx is to have output of 8 rows. Attached "join workflow" output shows only 1 record.