How To Fix MEPA027 - Invalid call (incomplete parameters)

SAP Error Message - Details

• Message type: E = Error

• Message class: MEPA - Messages for Portal Applications MM-PUR

• Message number: 027

• Message text: Invalid call (incomplete parameters)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MEPA027 - Invalid call (incomplete parameters) ?

  The SAP error message MEPA027 "Invalid call (incomplete parameters)" typically occurs in the context of the Materials Management (MM) module, particularly when dealing with purchasing documents or related transactions. This error indicates that a function or transaction was called with missing or incomplete parameters, which prevents the system from processing the request correctly.
  Causes:
  
  Missing Required Fields: The user may not have filled in all the mandatory fields in a transaction or function call.
  Incorrect Data Entry: There may be incorrect or invalid data entered in the fields, leading to incomplete parameters.
  Custom Development Issues: If there are custom programs or enhancements, they may not be handling parameters correctly.
  System Configuration: There may be issues with the configuration of the purchasing module or related settings.
  User Authorizations: Lack of proper authorizations can sometimes lead to incomplete data being processed.
  
  Solutions:
  
  Check Required Fields: Review the transaction or function call to ensure all mandatory fields are filled out correctly.
  Validate Data: Ensure that the data entered is valid and conforms to the expected formats and values.
  Debug Custom Code: If the error arises from a custom program, debug the code to identify where parameters are not being passed correctly.
  Review Configuration: Check the configuration settings in the MM module to ensure everything is set up correctly.
  User Authorizations: Verify that the user has the necessary authorizations to perform the action being attempted.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction or function being used.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to purchasing, such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), etc.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates.
  Support Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves custom developments or complex configurations.
  
  By following these steps, you should be able to identify the cause of the MEPA027 error and implement a suitable solution.