How To Fix GK173 - Use of document type for posting external documents not permissible

SAP Error Message - Details

• Message type: E = Error

• Message class: GK - Messages for SAP Consolidation

• Message number: 173

• Message text: Use of document type for posting external documents not permissible

What causes this issue?

The use of document type &V1& is not permitted for posting external
documents.

System Response

The system prevents posting of external documents by issuing an error
message in the task log.

How to fix this error?

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

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 GK173 - Use of document type for posting external documents not permissible ?

  The SAP error message GK173, which states "Use of document type for posting external documents not permissible," typically occurs when you attempt to post an external document using a document type that is not configured to allow such postings. This can happen in various SAP modules, particularly in Financial Accounting (FI) or Controlling (CO).
  Cause:
  
  Document Type Configuration: The document type you are trying to use for posting an external document is not set up to allow external postings. Document types in SAP are configured with specific settings that determine how they can be used.
  Posting Rules: The system may have specific rules or restrictions in place that prevent the use of certain document types for external documents.
  User Authorization: The user may not have the necessary authorizations to post using the specified document type.
  
  Solution:
  
  
  Check Document Type Configuration:
  
  Go to the transaction code OBAY (for document type configuration).
  Look for the document type you are trying to use and check its settings.
  Ensure that the document type is configured to allow external document postings. You may need to adjust the settings accordingly.
  
  
  
  Use a Different Document Type:
  
  If the current document type is not allowed for external postings, consider using a different document type that is configured for this purpose.
  
  
  
  Review User Authorizations:
  
  Ensure that the user has the necessary authorizations to post using the specified document type. This can be checked in the user roles and profiles.
  
  
  
  Consult with SAP Basis or Functional Team:
  
  If you are unsure about the configuration or need to make changes, consult with your SAP Basis or functional team. They can provide insights into the configuration and help make necessary adjustments.
  
  
  
  Check for Customizations:
  
  If your organization has custom developments or enhancements, check if there are any custom validations or logic that might be affecting the posting process.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OBAY - Document Type Configuration
  FB01 - Post Document
  F-02 - General Posting
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review SAP documentation related to document types and external postings for more detailed information on configuration and usage.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.