MI540 - Invalid pushbutton function code (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: MI - Customizing for the Material Master

• Message number: 540

• Message text: Invalid pushbutton function code (&)

What causes this issue?

The function code for the pushbutton must begin with PB followed by a
two-digit consecutive number such as PB88.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct the function code for the pushbutton.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MI540 - Invalid pushbutton function code (&) ?

  The SAP error message MI540 "Invalid pushbutton function code (&)" typically occurs in the context of the SAP Inventory Management module, particularly when dealing with transactions related to goods movements, physical inventory, or similar functions. This error indicates that the system has encountered an invalid or unrecognized function code associated with a pushbutton in the user interface.
  Causes:
  
  Custom Development: If there are custom enhancements or modifications in the SAP system, it is possible that a pushbutton function code has been incorrectly defined or is missing.
  User Authorization: The user may not have the necessary authorizations to access certain functions, leading to the system not recognizing the function code.
  System Configuration: Incorrect configuration settings in the SAP system can lead to invalid function codes being referenced.
  Transaction Code Issues: The transaction code being used may not be correctly set up or may have been changed, leading to the error.
  SAP Notes: There may be known issues or bugs related to the specific version of SAP you are using that have been documented in SAP Notes.
  
  Solutions:
  
  Check Custom Code: If there are custom developments, review the code to ensure that all pushbutton function codes are correctly defined and implemented.
  User Authorizations: Verify that the user has the necessary authorizations to perform the action associated with the pushbutton. This can be done by checking the user's roles and authorizations in the system.
  Review Configuration: Check the configuration settings related to the transaction or module in question. Ensure that all necessary settings are correctly configured.
  Transaction Code Verification: Ensure that the transaction code being used is valid and has not been altered or removed.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. Apply any recommended patches or updates.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or information that may provide more context about the issue.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  Documentation: Review the official SAP documentation for the specific module or transaction you are working with to ensure compliance with best practices.
  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 identify the root cause of the MI540 error and implement an appropriate solution.