How To Fix SIW049 - Proxy name '&1' does not match prefix '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SIW - Service Implementation Workbench

• Message number: 049

• Message text: Proxy name '&1' does not match prefix '&2'

What causes this issue?

The name of the proxy class or interface does not match with the proxy
prefix that is defined.

System Response

The mapping check fails; subsequent generation steps can not be
executed.

How to fix this error?

Adapt proxy class or interface name, or adapt the proxy prefix
definition.

Procedure for System Administrators

Additional Hints
Within the SIW transaction, you can navigate from the displayed log
dialog to the erroneous mapping node. When you double-click the log
message, the system opens the corresponding detail screen and leaves the
log open. This enables you to correct the incorrect mapping entries
right away. To update the log messages, click the Mapping Check
pushbutton again.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SIW049 - Proxy name '&1' does not match prefix '&2' ?

  The SAP error message SIW049 indicates that there is a mismatch between the proxy name and the expected prefix. This error typically occurs in the context of SAP Integration scenarios, particularly when dealing with Service Interfaces and Proxy Objects.
  Cause:
  The error arises when the system expects a certain naming convention for the proxy name, which is defined by a prefix. The proxy name provided does not conform to this expected format, leading to the mismatch. This can happen due to:
  
  Incorrect Configuration: The proxy name may have been incorrectly configured in the system.
  Naming Convention Violation: The proxy name does not follow the naming conventions set for the specific service or interface.
  Transport Issues: If the proxy was transported from one system to another, the prefix might not have been correctly set up in the target system.
  
  Solution:
  To resolve the SIW049 error, you can take the following steps:
  
  
  Check Proxy Configuration:
  
  Go to the relevant transaction (e.g., SPROXY) and verify the configuration of the proxy object.
  Ensure that the proxy name matches the expected naming convention and prefix.
  
  
  
  Review Naming Conventions:
  
  Confirm the naming conventions used in your organization for proxy names.
  Adjust the proxy name to ensure it starts with the correct prefix.
  
  
  
  Adjust Prefix Settings:
  
  If the prefix is defined in the system settings, ensure that it is correctly set up.
  You may need to adjust the settings in the relevant configuration areas (e.g., SOAMANAGER).
  
  
  
  Transport Configuration:
  
  If the proxy was transported, check the transport request to ensure that all necessary objects and configurations were included.
  Re-transport the proxy with the correct settings if necessary.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP you are using for any additional guidance on proxy naming conventions.
  
  
  
  Testing:
  
  After making the necessary changes, test the proxy to ensure that it is functioning correctly without errors.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SPROXY: For managing proxy objects.
  SOAMANAGER: For managing web service configurations.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  
  
  Integration Scenarios: Understanding the specific integration scenario (e.g., PI/PO, SOAP, REST) can help in troubleshooting the issue more effectively.
  
  
  By following these steps, you should be able to resolve the SIW049 error and ensure that your proxy configurations are correct.