How To Fix SPXN190 - Operation &1 of RFC consumer &2 not assigned to contract implementation

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 190

• Message text: Operation &1 of RFC consumer &2 not assigned to contract implementation

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SPXN190 - Operation &1 of RFC consumer &2 not assigned to contract implementation ?

  The SAP error message SPXN190 indicates that there is an issue with the assignment of an operation in a Remote Function Call (RFC) consumer to a contract implementation. This typically occurs in the context of SAP's Business Process Management (BPM) or when working with service-oriented architecture (SOA) scenarios.
  Cause:
  The error can arise due to several reasons:
  
  Missing Assignment: The operation specified in the RFC consumer is not properly assigned to a contract implementation in the SAP system.
  Configuration Issues: There may be configuration issues in the Service Registry or the Service Definition that prevent the operation from being recognized.
  Transport Issues: If the system has recently undergone a transport, the necessary configurations may not have been transported correctly.
  Version Mismatch: There may be a version mismatch between the RFC consumer and the contract implementation.
  
  Solution:
  To resolve the SPXN190 error, you can follow these steps:
  
  
  Check Contract Implementation:
  
  Go to the transaction code SPRO and navigate to the relevant configuration for your RFC consumer.
  Ensure that the operation in question is correctly assigned to the contract implementation.
  
  
  
  Assign Operation:
  
  If the operation is not assigned, you will need to assign it manually. This can typically be done in the Service Definition or Service Registry.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the RFC consumer and ensure that all necessary settings are correctly configured.
  Verify that the service definitions are correctly set up and that the operations are properly defined.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported correctly.
  If needed, re-transport the relevant objects.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as this can sometimes resolve underlying issues.
  
  
  
  Testing:
  
  After making the necessary changes, test the RFC call again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO, SE80, and SOAMANAGER for service management.
  Documentation: Refer to SAP Help documentation for detailed guidance on configuring RFC consumers and contract implementations.
  SAP Notes: Check SAP Notes for any known issues or fixes related to the SPXN190 error message.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.