How To Fix SAP_ACO029 - Type &1 is incompatible.

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_ACO - SAP ACO Messages

• Message number: 029

• Message text: Type &1 is incompatible.

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 SAP_ACO029 - Type &1 is incompatible. ?

  The SAP error message SAP_ACO029 with the description "Type &1 is incompatible" typically occurs in the context of data types in ABAP programming or when working with data structures in SAP. This error indicates that there is a mismatch between the expected data type and the actual data type being used in a particular operation or assignment.
  Causes:
  
  Data Type Mismatch: The most common cause is that the data type of a variable or field does not match the expected type. For example, trying to assign a character string to a numeric field.
  Incompatible Structures: If you are working with structures or tables, the fields may not align correctly in terms of data types.
  Function Module or Method Call: If you are calling a function module or method, the parameters being passed may not match the expected types.
  Type Declaration Issues: Incorrectly declared types or using types that are not compatible with each other in the context of the operation.
  
  Solutions:
  
  Check Data Types: Review the data types of the variables involved in the operation. Ensure that they are compatible. You can use the ABAP Data Dictionary (SE11) to check the definitions.
  Type Casting: If necessary, use type casting to convert one data type to another, ensuring that the conversion is valid and will not lead to data loss.
  Review Function Module/Method Signatures: If the error occurs during a function call, check the signature of the function module or method to ensure that the parameters being passed match the expected types.
  Debugging: Use the ABAP debugger to step through the code and identify where the type mismatch occurs. This can help pinpoint the exact line of code causing the issue.
  Consult Documentation: If you are using standard SAP function modules or methods, refer to the SAP documentation for the correct usage and expected data types.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the different data types in ABAP, such as CHAR, NUMC, INT, DEC, etc.
  Data Dictionary (SE11): Use the Data Dictionary to check the definitions of tables, structures, and data elements.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Consider searching or posting on SAP community forums for additional insights or similar experiences from other developers.
  
  By following these steps, you should be able to identify and resolve the cause of the SAP_ACO029 error in your ABAP code.