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The shortest retention period in days is determined by subtracting theretention periods for the archiving object ISU_BILL (IS-U archiving:Billing document) for manual billing or standard billing, final billingand backbilling/period-end billing from system date &v4&. In this case,it produces the key date &v3&. However, the end of the billing period comes before this key date. As aresult, document &v2& cannot be reversed since the previous document isrequired for correctly determining the new start of billing. Procedure |