How To Fix AJ870 - Inst. group: Reversal of doc. no. &1 (doc. for PI) ended with error

AJ870 - Overview

• Message type: E = Error

• Message class: AJ - Billing program

• Message number: 870

• Message text: Inst. group: Reversal of doc. no. &1 (doc. for PI) ended with error

What causes this issue?

The document to be reversed (document &V1&) belongs to an installation
group. It is a <DS:DE.MAINDOCNO>primary installation document</>.
In this case, the complete installation group, that is all documents
connected to document &V1& as well as document &V1& itself, must be
reversed together.
An internal error has occurred during the reversal of document &V1&.
As a result, the installation group cannot be reversed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct the error in document &V1& and start the reversal again.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AJ870 - Inst. group: Reversal of doc. no. &1 (doc. for PI) ended with error ?

  The SAP error message AJ870 indicates that there was an issue with the reversal of a document related to a Profitability Analysis (CO-PA) document. This error typically occurs when trying to reverse a document that has already been processed or when there are inconsistencies in the data.
  Causes:
  
  Document Already Reversed: The document you are trying to reverse may have already been reversed previously.
  Inconsistent Data: There may be inconsistencies in the data related to the document, such as missing or incorrect entries in the relevant tables.
  Posting Period Issues: The posting period for the document may be closed, preventing any further changes.
  Authorization Issues: The user may not have the necessary authorizations to perform the reversal.
  
  Configuration Issues: There may be configuration settings in the system that are preventing the reversal from being processed correctly.
  
  Solutions:
  
  Check Document Status: Verify if the document has already been reversed. You can do this by checking the document history in