How To Fix PEP401 - Document type '&' not known

SAP Error Message - Details

• Message type: E = Error

• Message class: PEP - Schedule Manager: Messages

• Message number: 401

• Message text: Document type '&' not known

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PEP401 - Document type '&' not known ?

  The SAP error message PEP401, which states "Document type '&' not known," typically occurs in the context of SAP Project System (PS) or related modules when the system encounters a document type that is not recognized or defined in the system. This can happen during various operations, such as creating or processing documents related to projects, such as purchase orders, invoices, or other project-related documents.
  Causes:
  
  Undefined Document Type: The document type specified in the transaction is not defined in the system configuration.
  Incorrect Configuration: The document type may have been incorrectly configured or deleted in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the specified document type.
  Custom Development: If there are custom developments or enhancements, they may reference a document type that is not properly set up.
  
  Solutions:
  
  
  Check Document Type Configuration:
  
  Go to the configuration settings in SAP (Transaction Code: SPRO).
  Navigate to the relevant area for document types (e.g., Project System or Financial Accounting).
  Verify if the document type in question is defined and correctly configured.
  
  
  
  Create or Modify Document Type:
  
  If the document type is missing, you may need to create it using the appropriate configuration settings.
  If it exists but is not functioning correctly, review its settings and make necessary adjustments.
  
  
  
  User Authorizations:
  
  Check the user roles and authorizations to ensure that the user has access to the document type.
  Use transaction code SU53 to analyze authorization issues after the error occurs.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific module you are working with to understand the expected document types.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance, especially if it involves custom developments.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), SU53 (Authorization Check), and SE11 (Data Dictionary) for further investigation.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message PEP401.
  Testing: After making changes, perform tests to ensure that the document type is now recognized and that the error does not occur again.
  
  By following these steps, you should be able to identify the cause of the PEP401 error and implement a solution to resolve it.