p_cir_50 sends a separate notice for each overdue item and a separate billing notice for each Lost or "Claims Returned" item. If the loans have been made by a proxy, then a notice letter may be printe...p_cir_50 sends a separate notice for each overdue item and a separate billing notice for each Lost or "Claims Returned" item. If the loans have been made by a proxy, then a notice letter may be printed for the proxy in addition to that for the sponsor (depending on the Z303-PROXY-ID-TYPE). {p_cir_50 and p_cir_52 print a notice for the z36_id (the sponsor) only.} It uses the overdue-summary-xx-yy form.