How To Fix /IWBEP/CM_CP157 - Asynchronous requests have no response

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 157

• Message text: Asynchronous requests have no response

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP157 - Asynchronous requests have no response ?

  The SAP error message /IWBEP/CM_CP157 Asynchronous requests have no response typically occurs in the context of SAP Gateway and OData services when an asynchronous request is made, but the system does not receive a response within the expected timeframe. This can happen for various reasons, including network issues, server performance problems, or misconfigurations in the OData service.
  Causes:
  
  Network Issues: There may be connectivity problems between the client and the SAP server, leading to timeouts.
  Server Performance: The SAP server may be under heavy load, causing delays in processing requests.
  Long-Running Processes: The backend processing for the request may take longer than expected, leading to a timeout.
  Configuration Issues: There may be misconfigurations in the OData service or the Gateway settings.
  Error in the Backend: The backend system (like an ABAP program or database) may encounter an error that prevents it from returning a response.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the client and the SAP server. You can use tools like ping or traceroute to diagnose connectivity.
  Monitor Server Performance: Use transaction codes like SM50 or SM66 to monitor the performance of the SAP system and check for any long-running processes.
  Increase Timeout Settings: If the backend processing is expected to take longer, consider increasing the timeout settings for the OData service in the SAP Gateway configuration.
  Review OData Service Configuration: Check the configuration of the OData service in transaction /IWFND/MAINT_SERVICE to ensure it is set up correctly.
  Check Backend Logs: Look at the backend logs (using transaction SLG1 for application logs) to identify any errors that may have occurred during processing.
  Debugging: If you have access, you can debug the OData service to see where it might be failing or taking too long.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is responsible for enabling communication between SAP systems and external applications using OData services.
  OData Services: OData (Open Data Protocol) is a standard protocol used for building and consuming RESTful APIs.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /IWFND/MAINT_SERVICE, SLG1, SM50, and SM66 for monitoring and troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.