How To Fix OH037 - Incompatible fields: & - &

SAP Error Message - Details

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 037

• Message text: Incompatible fields: & - &

What causes this issue?

You have tried to enter a set into another set. However, the two sets
are not compatible due to different fields.

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?

Correct your entry. Only use compatible sets.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OH037 - Incompatible fields: & - & ?

  The SAP error message OH037, which states "Incompatible fields: & - &", typically occurs in the context of SAP's data processing, particularly when dealing with field assignments or data transfers between different structures or tables. This error indicates that there is a mismatch between the fields being processed, which can happen in various scenarios, such as during data uploads, report generation, or when executing certain transactions.
  Cause:
  
  Field Mismatch: The most common cause of this error is that the fields being compared or assigned do not have compatible data types or lengths. For example, trying to assign a character field to a numeric field or vice versa.
  Data Structure Changes: If there have been changes to the data structures (like tables or views) that are not reflected in the program or report, this can lead to incompatibility.
  Custom Development: If there are custom programs or enhancements that manipulate data, they may not be correctly handling the data types or structures.
  
  Solution:
  
  Check Field Definitions: Review the field definitions in the relevant data structures (tables, views, etc.) to ensure that the fields being compared or assigned are compatible in terms of data type and length.
  Adjust Data Types: If you are working with custom code, ensure that the data types of the variables being used match the expected types of the fields they are interacting with.
  Debugging: Use the SAP debugger to trace the execution of the program or transaction that is causing the error. This can help identify where the incompatible fields are being referenced.
  Review Changes: If there have been recent changes to the data model or custom code, review those changes to ensure they are correctly implemented and do not introduce incompatibilities.
  Consult Documentation: Check SAP notes or documentation related to the specific transaction or program to see if there are known issues or patches available.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Transaction Codes: Depending on where the error occurs, you may want to look into transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to analyze the data structures involved.
  Community Forums: SAP Community and other forums can be helpful to see if other users have encountered the same issue and what solutions they found effective.
  
  By following these steps, you should be able to identify the cause of the OH037 error and implement a solution to resolve it.