Letters of Credit - Accelerator Pack – Product Catalogue Import Non –Revolving Usance (ILUN) & Import Non Revolving Sight (ILSN) Tracers 2.2.7 Tracers Tracer code Number Start days Frequency ACK_TRACER 5 1 1 CHG_COM_TRACER 5 1 1 Parent topic: Import Non –Revolving Usance (ILUN) & Import Non Revolving Sight (ILSN)