How To Fix ACM_SYNTAX084 - Type-incompatible comparison for field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ACM_SYNTAX - ACM: DCL Syntax Error Messages

• Message number: 084

• Message text: Type-incompatible comparison for field &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.

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 ACM_SYNTAX084 - Type-incompatible comparison for field &1 ?

  The SAP error message ACM_SYNTAX084 indicates that there is a type-incompatible comparison for a field in your ABAP code. This typically occurs when you are trying to compare two variables or fields that are of different data types, which is not allowed in ABAP.
  Cause:
  The error is caused by attempting to perform a comparison operation (like = or <>) between two fields or variables that do not have compatible data types. For example, you might be trying to compare a character field with a numeric field, or a date field with a string.
  Solution:
  To resolve this error, you need to ensure that the fields or variables being compared are of compatible types. Here are some steps you can take:
  
  
  Check Data Types: Review the data types of the fields or variables involved in the comparison. You can do this by checking the definitions in the data dictionary or in the code.
  
  
  Type Conversion: If the fields are of different types but logically represent the same kind of data, you may need to convert one of the fields to the type of the other. Use appropriate conversion functions or methods, such as:
  
  CONVERT for numeric conversions.
  TO_CHAR, TO_DATE, or TO_NUM for string conversions.
  CAST for type casting.
  
  
  
  Modify Logic: If the comparison does not make sense logically (e.g., comparing a string to a number), you may need to rethink your logic and adjust the comparison accordingly.
  
  
  Use Type-Safe Comparisons: Always ensure that comparisons are made between fields of the same type to avoid such errors.
  
  
  Example:
  Suppose you have the following code snippet that causes the error:
  DATA: lv_number TYPE i,
        lv_string TYPE string.
  
  lv_number = 10.
  lv_string = '10'.
  
  IF lv_number = lv_string.  " This will cause ACM_SYNTAX084
    " Do something
  ENDIF.
  To fix this, you can convert lv_string to an integer before the comparison:
  IF lv_number = CONDENSE( lv_string ).  " Convert string to integer
    " Do something
  ENDIF.
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the various data types in ABAP and their compatibility.
  Type Conversion Functions: Review the ABAP documentation for built-in functions that can help with type conversion.
  Debugging: Use the ABAP debugger to inspect the values and types of variables at runtime to identify where the type mismatch occurs.
  
  By following these steps, you should be able to resolve the ACM_SYNTAX084 error and ensure that your comparisons are type-compatible.