How To Fix SB307 - Cannot compare object types &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SB - Version Management Messages

• Message number: 307

• Message text: Cannot compare object types &1 and &2

What causes this issue?

An attempt was made to compare two objects of different types (&V1& and
&V2&). This is not possible.
This is probably a programming error.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Write a problem message.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SB307 - Cannot compare object types &1 and &2 ?

  The SAP error message SB307 "Cannot compare object types &1 and &2" typically occurs when there is an attempt to compare two objects of different types in a context where they need to be of the same type. This can happen in various scenarios, such as when using ABAP code, during data processing, or in configuration settings.
  Cause:
  
  Type Mismatch: The most common cause is that the two objects being compared are of incompatible types. For example, you might be trying to compare a string with a numeric value or two different data structures.
  Incorrect Data Types: If the data types of the fields or variables involved in the comparison are not compatible, this error will be triggered.
  Configuration Issues: In some cases, this error can arise from incorrect configuration settings in the SAP system, where the expected object types do not match.
  
  Solution:
  
  Check Data Types: Review the data types of the objects being compared. Ensure that both objects are of the same type or can be converted to a common type.
  Type Casting: If necessary, use type casting or conversion functions to convert one of the objects to the type of the other before performing the comparison.
  Debugging: If you are working with ABAP code, use the debugger to step through the code and identify where the type mismatch occurs. This will help you understand the context of the error.
  Review Logic: Ensure that the logic of your program or configuration is correct and that you are not inadvertently trying to compare incompatible types.
  Consult Documentation: If the error occurs in a specific transaction or module, consult the SAP documentation or help resources for guidance on the expected object types.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the different data types in ABAP, such as CHAR, NUMC, INT, and others, to understand how they can be compared.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be specific fixes or recommendations provided by SAP.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By addressing the type mismatch and ensuring that the objects being compared are compatible, you should be able to resolve the SB307 error.