How To Fix MI540 - Invalid pushbutton function code (&)

MI540 - Overview

• 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.

MI540 - Details

• 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