How To Fix PEP400 - Unknown error while opening document type '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: PEP - Schedule Manager: Messages

• Message number: 400

• Message text: Unknown error while opening document type '&'

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 PEP400 - Unknown error while opening document type '&' ?

  The SAP error message PEP400, which states "Unknown error while opening document type '&'", typically occurs when there is an issue related to the document management system (DMS) or when trying to access a document that is not properly configured or does not exist.
  Possible Causes:
  
  Document Type Configuration: The document type specified in the error message may not be correctly configured in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the document type or the specific document.
  Document Not Found: The document you are trying to access may not exist or may have been deleted.
  System Issues: There could be a temporary issue with the SAP system or the DMS that is causing the error.
  Network Issues: If the document is stored externally, network issues could prevent access.
  
  Solutions:
  
  
  Check Document Type Configuration:
  
  Go to the configuration settings for document types in SAP and ensure that the document type referenced in the error message is correctly set up.
  Use transaction code OAC0 to check the document type settings.
  
  
  
  Verify User Authorizations:
  
  Ensure that the user has the necessary authorizations to access the document type. You can check this using transaction code SU53 after the error occurs to see if there are any authorization issues.
  
  
  
  Confirm Document Existence:
  
  Verify that the document you are trying to access actually exists in the system. You can do this by searching for the document using the appropriate transaction code (e.g., CV03N for displaying documents).
  
  
  
  Check System Status:
  
  If the issue persists, check if there are any ongoing system issues or maintenance activities that could be affecting the DMS. You can consult with your SAP Basis team for this.
  
  
  
  Network Connectivity:
  
  If the document is stored externally, ensure that there are no network issues preventing access to the document.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. Sometimes, there are patches or updates that can resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CV01N (Create Document), CV02N (Change Document), and CV03N (Display Document) for document management.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered the same issue.
  Documentation: Review SAP documentation related to Document Management System (DMS) for best practices and troubleshooting steps.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.