How To Fix >A018 - Error in module &1; invalid data returned in parameter &2

>A018 - Overview

• Message type: E = Error

• Message class: >A -

• Message number: 018

• Message text: Error in module &1; invalid data returned in parameter &2

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 >A018 - Error in module &1; invalid data returned in parameter &2 ?

  The SAP error message A018 indicates that there is an issue with a specific module where invalid data has been returned in a parameter. This error typically arises during the execution of a function module or a method in an ABAP program. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  
  Invalid Data: The error usually occurs when the data returned by a function module or method does not match the expected format or type. This could be due to:
  
  Incorrect input parameters being passed to the function.
  Data inconsistencies in the database.
  Changes in the data structure that are not reflected in the calling program.
  
  
  
  Programming Errors: There may be bugs in the ABAP code that lead to incorrect handling of data.
  
  
  
  Configuration Issues: Sometimes, configuration settings in the system can lead to unexpected behavior in function modules.
  
  
  
  Solution:
  
  
  Check Input Parameters: Review the parameters being passed to the function module. Ensure that they are