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