How To Fix GA780 - Document &/& already exists (line items not posted)

SAP Error Message - Details

• Message type: E = Error

• Message class: GA - Allocations

• Message number: 780

• Message text: Document &/& already exists (line items not posted)

What causes this issue?

A CO-PA line item already exists with this document/item number.
The number range for transaction type "D" has probably been modified.

System Response

Cost center assessment to Profitability Analysis is terminated.

How to fix this error?

Contact your system administrator. The number range must be set for
document numbers that are not yet in use. You can then rerun the cycle.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GA780 - Document &/& already exists (line items not posted) ?

  The SAP error message GA780 ("Document &/& already exists (line items not posted)") typically occurs when you attempt to post a document that has already been created in the system, but the line items associated with that document have not been fully processed or posted. This can happen in various SAP modules, particularly in Financial Accounting (FI) or Controlling (CO).
  Causes:
  
  Duplicate Document Number: The document number you are trying to post already exists in the system, and SAP does not allow duplicate postings for the same document number.
  Incomplete Posting: The document may have been created but not fully posted, leaving it in a state where it cannot accept new line items.
  Document Type Restrictions: Certain document types may have restrictions that prevent multiple postings or require specific conditions to be met before they can be posted again.
  User Error: The user may have inadvertently tried to post the same document multiple times.
  
  Solutions:
  
  Check Existing Documents: Use transaction codes like FB03 (Display Document) to check if the document already exists. If it does, review its status and line items.
  Complete or Reverse Incomplete Documents: If the document exists but is incomplete, you may need to complete the posting or reverse it if it was posted incorrectly.
  Use a Different Document Number: If you need to create a new document, ensure that you are using a unique document number that does not conflict with existing entries.
  Review Document Type Settings: Check the configuration of the document type being used to ensure that it allows for the type of posting you are attempting.
  Consult with Your SAP Administrator: If you are unsure about the status of the document or how to resolve the issue, consult with your SAP administrator or support team for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB03 (Display Document), FB02 (Change Document), and FB01 (Post Document) to manage document postings effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific guidance or solutions based on the version of SAP you are using.
  User Authorization: Ensure that you have the necessary authorizations to post documents in the relevant modules, as lack of permissions can also lead to errors.
  
  By following these steps, you should be able to identify the cause of the GA780 error and take appropriate action to resolve it.