Billing:Delete Adjustment Reversal Document Number from Billing Order: EA24

This transaction is used to cancel a reversal adjustment billing orders.

Steps:

1. Reverse the new print document and corresponding new billing document resulted from adjustment reversal (difference bill). 
2. Reverse the corresponding print document of the original billing document of adjustment reversal (the billing documents are stated in ETRG-SC_BELNR). 
3. Enter the billing document numbers (original billing documents) of the adjustment reversal from the billing order and hit execute buttons.
4. Re-bill and re-invoice to generate new billing documents and new print documents that should have same result as original billing documents and original print documents.

Effects:

1. When step 1 is executed, original billing document's new billing document number (ERCH-SC_BELNR_N) field is cleared as well. 
2. But the billing document number for adjustment reversal (ERCH-SC_BELNR_H) on the reversed new billing document remains intact.
3. When step 3 is executed, the adjustment reversal document number (ETRG-SC_BELNR) from billing orders will be cleared. And these new billing orders are ready to be billed to generate normal bill instead of difference bill.

Prerequisites:

1. Print document of the billing documents stated in (ETRG-SC_BELNR) must be reversed in order to delete adjustment reversal billing document from billing orders. Thus, be careful when using EA21 to create adjustment reversal.

Billing: Adjustment Reversal: EA21

Adjustment reversal is used to reverse a billing document without having to reverse the corresponding print document.

Example:

1. First Billing Document - 1/20/2016 
2. Second Billing Document - 2/20/2016
3. Third Billing Document - 3/20/2016

Correction is needed for second bill but you don't want to reverse print document.

Steps:

1. Go to transaction code EA21,
2. Enter Third Bill and Second Bill to create billing orders for adjustment reversal.
3. Correct billing related data such as installation facts and/or meter readings
4. Re-bill and re-invoice the customer.

Note:

1. Only single adjustment reversal is permitted unless enhancement EBIA0029 is implemented.
2. "Reverse Billing" indicator represents dynamic billing reversal, if billing document has not been invoiced, SAP will execute standard reversal (full reversal) instead of adjustment reversal.
3. "Always Completely Reverse Inst. Groups" indicates that all billing documents within same installation group will be reversed. 

Effects:

1. SAP will create billing orders in table ETRG with the field "Doc.no. in adj. rev."(SC_BELNR) populated with billing documents entered in step 2 for the same bill period.
2. Original billing documents and print documents will no longer visible via ES32 (Display Installation), although original print document still valid in the system.
3. In the original billing document
1. Reversal Date is populated (Considered as reversed)
2. "Billing Doc No" fild (ERCH-SC_BELNR_N) is populated with new billing document number.
4. In the new billing document (difference bill)
1. Original billing document is populated to document header's "Doc.no. in adj. rev." field (ERCH-SC_BELNR_H).
2. The line items from original billing documents will appear as negation values 
3. These line items will have the original billing document number populated to the field "Doc.no. in adj. rev." (DBERCHZ4-SC_BELNR)