@Karina I'm facing a mapping problem and wondering if you have seen this before. I have a custom field (list/record) on the source transaction line, the arrangement line, and the journal line. It's the same field id in all 3 places. The value is easy to map from source to arrangement - but I need it it appear on the journal line. This is not a segment but is a reference number which is needed for an integration - i.e while I can easily report on it within NS I need to actually place it on the JE line. Have you done this?