Letters of Credit - Accelerator Pack – Product Catalogue Import LC Usance Revolving (ILUR) & Import LC Sight Revolving (ILSR) Tracers 2.1.7 Tracers Tracer code Number Start days Frequency ACK_TRACER 10 2 7 CHG_COM_TRACER 10 2 7 CON_TRACER 10 2 7 Parent topic: Import LC Usance Revolving (ILUR) & Import LC Sight Revolving (ILSR)