How To Fix MW403 - Invalid parameter & for switch number assignment

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 403

• Message text: Invalid parameter & for switch number assignment

System Response

INCLUDE ISR_VERARBEITUNG

How to fix this error?

INCLUDE ISR_SYSTEMFEHLER

Procedure for System Administrators

When a function module / form routine was called, the parameter for
number assignment was assigned wrongly. This is probably a program
error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW403 - Invalid parameter & for switch number assignment ?

  The SAP error message MW403, which states "Invalid parameter & for switch number assignment," typically occurs in the context of material management and inventory management processes. This error is related to the assignment of switch numbers for materials, which are used in various inventory and logistics operations.
  Cause:
  The error can be triggered by several factors, including:
  
  Invalid Switch Number: The switch number being referenced may not exist or may not be valid for the material or operation being performed.
  Incorrect Parameter: The parameter being passed to the function or transaction may not be in the expected format or may not meet the required criteria.
  Configuration Issues: There may be issues with the configuration settings in the system related to material management or inventory management.
  Data Integrity Issues: There could be inconsistencies or corruption in the master data related to materials or switch numbers.
  
  Solution:
  To resolve the MW403 error, you can take the following steps:
  
  
  Check the Switch Number: Verify that the switch number you are trying to use is valid and exists in the system. You can do this by checking the relevant master data or configuration settings.
  
  
  Review Parameters: Ensure that all parameters being passed to the transaction or function are correct and in the expected format. This includes checking for typos or incorrect values.
  
  
  Configuration Review: Review the configuration settings related to material management and switch number assignments. Ensure that all necessary settings are correctly configured.
  
  
  Data Consistency Check: Perform a data consistency check to ensure that there are no issues with the master data related to materials and switch numbers. You may need to run specific reports or transactions to identify and correct any inconsistencies.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the error message and its context. This can provide insights into common causes and solutions.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP support for further assistance. They can provide more detailed troubleshooting based on your specific system configuration and usage.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may be involved in switch number assignments, such as MM01 (Create Material), MM02 (Change Material), and others related to inventory management.
  SAP Notes: Check for any SAP Notes related to the MW403 error message. SAP frequently releases notes that address known issues and provide solutions or workarounds.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the MW403 error and implement a solution to resolve it.