How To Fix MW401 - Invalid key for item delivery phase &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 401

• Message text: Invalid key for item delivery phase &

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 MW401 - Invalid key for item delivery phase & ?

  The SAP error message MW401 "Invalid key for item delivery phase" typically occurs during the processing of delivery documents in the SAP system. This error indicates that there is an issue with the key used to identify the delivery phase of an item in the delivery document. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Item Status: The item may not be in a valid status for the delivery phase being processed.
  Missing or Incorrect Configuration: The delivery phase configuration in the system may be incomplete or incorrect.
  Data Inconsistencies: There may be inconsistencies in the data related to the delivery document, such as missing entries in the database tables.
  Custom Development Issues: If there are custom enhancements or modifications in the delivery process, they may be causing the error.
  Transport Issues: If the delivery phase was recently transported from a development environment to production, there may be issues with