How To Fix GG845 - Document type & has already been defined for a different function

SAP Error Message - Details

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 845

• Message text: Document type & has already been defined for a different function

What causes this issue?

You tried to create document type &V1&, but this document type is
already used in one of the following:
actual posting
planning
rollup

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?

Enter a different name for your new document type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GG845 - Document type & has already been defined for a different function ?

  The SAP error message GG845 indicates that a document type has already been defined for a different function within the system. This typically occurs when there is an attempt to create or configure a document type that conflicts with an existing document type that has already been assigned to another function or purpose.
  Cause:
  
  Duplicate Document Type: The document type you are trying to create or modify already exists in the system for a different function (e.g., invoice, credit memo, etc.).
  Configuration Error: There may be a misconfiguration in the document type settings, leading to conflicts.
  System Customization: If the system has been customized, it’s possible that the document type was defined in a way that overlaps with existing definitions.
  
  Solution:
  
  
  Check Existing Document Types:
  
  Go to the relevant configuration transaction (e.g., OBA7 for document types) and check the list of existing document types to see if the one you are trying to create already exists.
  If it does exist, determine if it can be reused for your intended purpose.
  
  
  
  Modify Existing Document Type:
  
  If the existing document type is not suitable for your needs, consider modifying it instead of creating a new one. Ensure that the changes do not conflict with other functions.
  
  
  
  Create a New Document Type:
  
  If you need a new document type, ensure that it has a unique identifier and is not conflicting with any existing document types. You may need to change the name or the configuration settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or configuration guides related to document types to ensure you are following the correct procedures.
  
  
  
  Check Authorization:
  
  Ensure that you have the necessary authorizations to create or modify document types in the system.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBA7 (for document types) and OBA5 (for document type assignment).
  SAP Notes: Check SAP Notes for any known issues or patches related to document types and this specific error message.
  Testing: After making changes, conduct thorough testing to ensure that the document type functions as expected without causing further issues.
  
  By following these steps, you should be able to resolve the GG845 error and successfully manage document types in your SAP system.