How To Fix /MOC/CONFIG129 - Document type &1 is already assigned to document schema

SAP Error Message - Details

• Message type: E = Error

• Message class: /MOC/CONFIG -

• Message number: 129

• Message text: Document type &1 is already assigned to document schema

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /MOC/CONFIG129 - Document type &1 is already assigned to document schema ?

  The SAP error message /MOC/CONFIG129 Document type &1 is already assigned to document schema typically occurs in the context of document management or configuration settings within the SAP system. This error indicates that the document type you are trying to assign to a document schema is already linked to another document schema, which prevents you from making the assignment you intended.
  Cause:
  
  Duplicate Assignment: The document type you are trying to assign is already associated with a different document schema.
  Configuration Error: There may be a misconfiguration in the document management settings where the same document type is inadvertently linked to multiple schemas.
  System Constraints: SAP enforces certain constraints to maintain data integrity, and this error is a result of those constraints.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing Assignments:
  
  Go to the configuration settings for document types and schemas in SAP.
  Verify which document schema the document type is currently assigned to. You can do this by navigating to the relevant configuration transaction (e.g., SPRO for customizing).
  
  
  
  Reassign Document Type:
  
  If the document type is assigned to a schema that is not needed, you can remove the assignment from the existing schema and then assign it to the desired schema.
  If the document type needs to be used in multiple schemas, consider creating a new document type that can be assigned to the new schema.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to document management configuration to ensure you are following the correct procedures.
  
  
  
  Check for Customizations:
  
  If your SAP system has custom developments or enhancements, check if any custom logic is affecting the assignment of document types to schemas.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue through the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), OAC2 (Document Types), and OAC3 (Document Schema) to navigate the configuration settings.
  Documentation: Review the SAP Help Portal or specific SAP Notes related to document management for additional insights and troubleshooting steps.
  User Roles: Ensure that you have the necessary authorizations to make changes to document types and schemas in the SAP system.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.