How To Fix SRT_WSP661 - Invalid method call for service group "&1" (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 661

• Message text: Invalid method call for service group "&1" (see long text)

What causes this issue?

The method for determining the logical port is not supported for this
consumer group, as more than one provider system can be assigned.

How to fix this error?

Use the provider systems to determine the logical ports.

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 SRT_WSP661 - Invalid method call for service group "&1" (see long text) ?

  The SAP error message SRT_WSP661 indicates that there is an invalid method call for a service group in the context of SAP's Web Services framework. This error typically arises when there is a mismatch between the expected method calls and the actual methods being invoked in a web service scenario.
  Cause:
  
  Incorrect Method Name: The method being called does not exist in the specified service group.
  Service Group Configuration: The service group may not be properly configured or activated.
  WSDL Issues: The WSDL (Web Services Description Language) file may not be correctly defined or may not match the implementation.
  Authorization Issues: The user or system calling the service may not have the necessary permissions to invoke the method.
  Version Mismatch: There may be a version mismatch between the client and server implementations of the web service.
  
  Solution:
  
  Check Method Name: Verify that the method name being called matches exactly with the method defined in the service group.
  Review Service Group Configuration: Ensure that the service group is correctly configured and activated in the SAP system.
  Validate WSDL: Check the WSDL file for correctness and ensure it accurately reflects the methods available in the service group.
  Check Authorizations: Ensure that the user or system has the necessary authorizations to call the web service method.
  Test with SOAP UI or Postman: Use tools like SOAP UI or Postman to test the web service independently to see if the issue persists.
  Check Logs: Review the SAP application logs (transaction SLG1) for any additional error messages or details that could provide more context.
  Consult Documentation: Refer to the SAP documentation for the specific web service to ensure that all configurations and requirements are met.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SOAMANAGER to manage web service configurations.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to the error.
  Web Service Monitoring: Use the web service monitoring tools available in SAP to track the calls and identify where the failure occurs.
  Community Forums: Consider checking SAP Community forums or other technical forums for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.