How To Fix SF337 - Maintain only SAP structures in an SAP system

SF337 - Overview

• Message type: E = Error

• Message class: SF - SAPfind: Message Texts

• Message number: 337

• Message text: Maintain only SAP structures in an SAP system

What causes this issue?

You tried to maintain a customer structure in an SAP system. Customer
structures can only be maintained in customer systems.

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?

Error message extract from SAP system. Copyright SAP SE.

SF337 - Details

• The SAP error message SF337, which states "Maintain only SAP structures in an SAP system," typically occurs when there is an attempt to use or modify a structure that is not recognized as a standard SAP structure within the SAP system. This error is often related to the use of custom or non-standard structures in areas where only SAP-defined structures are permitted.
  
  Cause:
  
  Custom Structures: The error may arise when a custom structure is being used in a context that only allows standard SAP structures.
  Incorrect Configuration: There may be a configuration issue where a non-standard structure is mistakenly referenced in a standard SAP process.
  Data Dictionary Issues: If there are inconsistencies or errors in the Data Dictionary (e.g., a custom table or structure that is not properly defined), this error can occur.
  Transport Issues: If a transport request containing custom structures is incorrectly imported into the system, it may lead to this error.
  
  
  Solution:
  
  Check Structure