How To Fix ICA02027 - Parameter &1 must be a character or a text string.

SAP Error Message - Details

• Message type: E = Error

• Message class: ICA02 - ICA Matching Engine Message Class

• Message number: 027

• Message text: Parameter &1 must be a character or a text string.

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ICA02027 - Parameter &1 must be a character or a text string. ?

  The SAP error message ICA02027, which states "Parameter &1 must be a character or a text string," typically occurs when a function or method is expecting a character or text string as an input parameter, but it receives a different data type instead (such as a numeric value, date, or other incompatible types).
  Cause:
  
  Incorrect Data Type: The most common cause is that the parameter being passed to a function or method is not of the expected type. For example, if a function expects a string but receives a number or a date, this error will occur.
  Data Conversion Issues: Sometimes, data conversion issues can lead to this error, especially if the data is being pulled from different sources or systems.
  Program Logic Errors: There may be a logical error in the program where the wrong variable is being passed to the function.
  
  Solution:
  
  Check Parameter Types: Review the function or method documentation to confirm the expected data types for each parameter. Ensure that the parameter you are passing is indeed a character or text string.
  Data Type Conversion: If you are passing a variable that is not a string, convert it to a string using appropriate conversion functions (e.g., CONCATENATE, WRITE, or STRING functions in ABAP).
  Debugging: Use debugging tools to trace the execution of the program and inspect the values and types of the parameters being passed. This can help identify where the incorrect data type is being introduced.
  Review Program Logic: Ensure that the logic of your program is correct and that the right variables are being used in the right places.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific function or method you are using to understand the expected parameter types.
  ABAP Data Types: Familiarize yourself with ABAP data types and how to handle type conversions.
  SAP Community: Check forums and community discussions for similar issues, as other users may have encountered and resolved the same error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.