How To Fix DPR_OBJ_LINK004 - Proxy class (&2, method &3) for object type &1 contains errors

SAP Error Message - Details

• Message type: E = Error

• Message class: DPR_OBJ_LINK - Messages for Object Links

• Message number: 004

• Message text: Proxy class (&2, method &3) for object type &1 contains errors

What causes this issue?

The proxy class &V2&, entered in Customizing for object type &V1&, has
been implemented with errors. The method &V3& could not be called.

System Response

The system does not create the object link.

How to fix this error?

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

Procedure for System Administrators

Check Customizing for the object type &V1& (
<DS:SIMG.CPRO_STRUK_OBJLNKTYP>Define Object Types for Object Links
</>) as well as the implementation of the affected proxy classes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DPR_OBJ_LINK004 - Proxy class (&2, method &3) for object type &1 contains errors ?

  The SAP error message DPR_OBJ_LINK004 indicates that there is an issue with a proxy class related to a specific object type in the SAP system. This error typically arises in the context of SAP Project Management (PS) or related modules where object links and proxies are used to manage relationships between different entities.
  Cause:
  The error message DPR_OBJ_LINK004 can be caused by several factors, including:
  
  Incorrect Configuration: The proxy class for the specified object type may not be correctly configured or may have been modified incorrectly.
  Missing or Incomplete Implementation: The method referenced in the error message may not be fully implemented or may contain errors in its logic.
  Transport Issues: If the object was transported from one system to another (e.g., from development to production), there may have been issues during the transport process that led to inconsistencies.
  Authorization Issues: The user may not have the necessary authorizations to access or execute the proxy class or method.
  System Bugs: There may be bugs or inconsistencies in the SAP system that are causing the error.
  
  Solution:
  To resolve the DPR_OBJ_LINK004 error, you can follow these steps:
  
  
  Check Proxy Class Implementation:
  
  Go to the transaction SE80 (Object Navigator) and check the implementation of the proxy class mentioned in the error message.
  Ensure that the method specified is correctly implemented and does not contain any syntax errors.
  
  
  
  Review Configuration:
  
  Verify the configuration settings for the object type in question. Ensure that all necessary settings are correctly defined.
  
  
  
  Transport Check:
  
  If the object was recently transported, check the transport logs for any errors or warnings that may indicate issues during the transport process.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the action has the necessary authorizations to access the proxy class and its methods.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the proxy class to identify where the error occurs during execution.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates available that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant logs or screenshots.
  
  
  
  Related Information:
  
  Transaction Codes: SE80 (Object Navigator), SE37 (Function Module), SE24 (Class Builder), SE11 (Data Dictionary).
  Documentation: Review SAP documentation related to the specific object type and proxy classes for more context on their usage and configuration.
  Community Forums: Check SAP Community forums or other online resources where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the DPR_OBJ_LINK004 error in your SAP system.