How To Fix EQ311 - Final billing document &2 from the legacy system exists for contract &1

EQ311 - Overview

• Message type: E = Error

• Message class: EQ - Cross-IS-U functions

• Message number: 311

• Message text: Final billing document &2 from the legacy system exists for contract &1

What causes this issue?

A move-out was opened for which an open final billing document has not
been canceled. This document was imported from the legacy system.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EQ311 - Final billing document &2 from the legacy system exists for contract &1 ?

  The SAP error message EQ311 indicates that there is a final billing document in the legacy system for a contract that you are trying to process. This typically occurs in scenarios where you are migrating data from a legacy system to SAP or when you are trying to create a new billing document for a contract that has already been finalized in the legacy system.
  
  Cause:
  
  Final Billing Document Exists: The primary cause of this error is that a final billing document has already been created in the legacy system for the specified contract. This means that the contract is considered closed, and no further billing can occur in SAP for that contract.
  Data Migration Issues: If you are migrating data from a legacy system, it is possible that the migration did not account for existing final billing documents, leading to conflicts when trying to create new documents in SAP.
  
  
  Solution:
  
  Check Legacy System: Verify