How To Fix MU055 - Incorrect call of function module &1

MU055 - Overview

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 055

• Message text: Incorrect call of function module &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MU055 - Incorrect call of function module &1 ?

  The SAP error message MU055 ("Incorrect call of function module &1") typically indicates that a function module is being called in an incorrect context or with incorrect parameters. This error can arise in various scenarios, often related to the use of function modules in ABAP programs or during the execution of certain transactions.
  Causes:
  
  Incorrect Parameters: The function module is being called with parameters that do not match the expected input/output types or structure.
  Improper Context: The function module may be called in a context where it is not applicable, such as during a specific transaction or process.
  Missing Authorization: The user may not have the necessary authorizations to execute the function module.
  Version Mismatch: The function module may have been changed or updated, and the calling program has not been adjusted accordingly.
  
  Configuration Issues: There may be configuration settings that affect how the function module operates.
  
  Solutions:
  
  Check Parameters: Review the parameters being passed to the function