How To Fix MW671 - A document category must be entered

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 671

• Message text: A document category must be entered

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MW671 - A document category must be entered ?

  The SAP error message MW671 ("A document category must be entered") typically occurs when you are trying to create or process a document in SAP that requires a document category, but none has been specified. This error is often encountered in the context of inventory management, material movements, or document postings.
  Cause:
  
  Missing Document Category: The most common cause is that the document category field is left blank when it is required for the transaction you are trying to perform.
  Configuration Issues: There may be configuration settings in the system that require a document category for certain transactions, and these settings may not be properly defined.
  User Input Error: The user may have overlooked entering the document category due to oversight or misunderstanding of the required fields.
  
  Solution:
  
  Enter Document Category: Ensure that you enter a valid document category in the relevant field when performing the transaction. The document category is often a dropdown selection, so make sure to choose the appropriate one based on the context of your transaction.
  Check Configuration: If you are an SAP administrator or have access to configuration settings, check the configuration for the relevant module (e.g., Inventory Management, Material Management) to ensure that the document categories are properly defined and that the system is set up to require them where necessary.
  Review User Roles and Authorizations: Ensure that the user has the necessary authorizations to enter the document category. Sometimes, restrictions in user roles can lead to incomplete data entry.
  Consult Documentation: Refer to SAP documentation or help files for the specific transaction you are working with to understand the requirements for document categories.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to inventory management, such as MIGO (Goods Movement), MB1A (Goods Withdrawal), or MB1B (Transfer Posting).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its system, and there may be specific notes addressing this error.
  User Training: If this error is common among users, consider providing additional training or documentation to help users understand the importance of entering a document category and how to do it correctly.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.