Diagnosis
Billing document &v1& cannot be reversed because the correspondingperiod-end billing order for installation &v3& and scheduled billingdate &v2& would have to be deleted. However, the period-end billingorder was generated when billing document &v4& was reversed foradjustment and it can therefore not be deleted.

System Response

Procedure
To reverse billing document &v1&, proceed as follows:
Execute an invoicing reversal for the invoicing document correspondingto billing document &v4& at the time of the adjustment reversal.
Using Transaction EA24 (Delete Adjustment Reversal from Billing Order),delete billing document &v4& from the period-end billing order.
Reverse billing document &v1&.