How To Fix WM321 - *** Start of function & ***

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 321

• Message text: *** Start of function & ***

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 WM321 - *** Start of function & *** ?

  The SAP error message WM321, which states " Start of function & ", typically occurs in the context of the Warehouse Management (WM) module. This error message is often related to issues with the configuration or execution of warehouse processes, such as picking, putaway, or inventory management.
  Cause:
  
  Configuration Issues: The error may arise due to incorrect or incomplete configuration in the Warehouse Management settings.
  Missing Master Data: Required master data (like storage types, storage bins, or material master records) may be missing or incorrectly set up.
  Process Interruption: The function being executed may be interrupted or not properly defined in the system.
  Authorization Issues: The user may not have the necessary authorizations to execute the function.
  System Bugs: Occasionally, this error can be caused by bugs in the SAP system or inconsistencies in the database.
  
  Solution:
  
  Check Configuration: Review the configuration settings in the Warehouse Management module to ensure that all necessary parameters are correctly set.
  Verify Master Data: Ensure that all required master data is available and correctly maintained. This includes checking storage types, storage bins, and material master records.
  Review User Authorizations: Check if the user has the necessary authorizations to perform the action that triggered the error.
  Debugging: If you have access to debugging tools, you can analyze the program or function module that is causing the error to identify the root cause.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide patches.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it appears to be a bug or a more complex issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in WM, such as LT01 (Create Transfer Order), LT10 (Transfer Order Confirmation), and others that may be related to the process you are working on.
  Documentation: Review SAP documentation and guides related to Warehouse Management for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the WM321 error in your SAP system.