PATLER/
Outputs any pattern errors that occurred during the last operation to the current listing device. These errors include: pattern errors which occurred during the last part retrieval, part merge, or component retrieval/update; errors which occurred expanding or updating a pattern object. This does not include errors which occurred during a pattern retrieval (using PATRET).
Use the GPA &PATERR to determine if there are any errors to list using PATLER.