Diagnosis
In the billing order for installation &v2& (see the billing documentfor scheduled billing date and billing transaction), billing documentV1 is marked as having been reversed for adjustment in theDoc.no. in adj. rev. field.
However, billing document &v1& was already reversed in invoicing; seethe offsetting document &v4& for invoicing document &v3& (entry intable ERCHC with SPCANC = "X").
You should not process the billing order for which the adjustmentreversal is set; this would only generate a difference bill relative tobilling document number &v1&. This could mean that the customer ischarged too little since the invoicing document has been reversed (andthis counters the point of an adjustment reversal).

System Response

Procedure
Check the billing and invoicing situation.
If necessary, you can delete the document number adjustment reversal inthe billing order using Transaction EA24 Delete adjustment reversaldocument number from billing order.