How To Fix REST_CORE_TEXTS020 - Could not create HTTP client

SAP Error Message - Details

• Message type: E = Error

• Message class: REST_CORE_TEXTS -

• Message number: 020

• Message text: Could not create HTTP client

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 REST_CORE_TEXTS020 - Could not create HTTP client ?

  The SAP error message REST_CORE_TEXTS020: Could not create HTTP client typically indicates an issue with the configuration or setup of the HTTP client in the SAP system. This error can occur in various scenarios, especially when trying to make HTTP calls to external services or APIs.
  Causes
  
  Network Configuration Issues: The SAP system may not be able to reach the external service due to network issues, firewall settings, or incorrect proxy settings.
  Missing or Incorrect HTTP Client Configuration: The HTTP client may not be properly configured in the SAP system. This includes missing parameters or incorrect settings in the HTTP client configuration.
  Authorization Issues: The user or service account being used to make the HTTP call may not have the necessary authorizations to create an HTTP client.
  SAP Kernel or Component Issues: There may be bugs or issues in the SAP kernel or the specific components being used for HTTP communication.
  Resource Limitations: The system may be running out of resources (e.g., memory, threads) to create a new HTTP client.
  
  Solutions
  
  Check Network Connectivity: Ensure that the SAP system can reach the external service. You can use tools like ping or telnet to test connectivity.
  Review HTTP Client Configuration:
  
  Go to transaction SOAMANAGER and check the configuration of the HTTP client.
  Ensure that the endpoint URL is correct and that all required parameters are set.
  
  
  Check Authorization: Verify that the user or service account has the necessary authorizations to perform HTTP calls. You may need to adjust roles or permissions.
  Review System Logs: Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or warnings that could provide more context.
  Update SAP Kernel: If you suspect a bug in the kernel or components, consider updating to the latest version or applying relevant support packages.
  Monitor System Resources: Use transaction SM50 or SM66 to monitor system resources and ensure that there are enough available to create new HTTP clients.
  
  Related Information
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the HTTP client and REST services to ensure that you are following best practices for configuration.
  Community Forums: Check SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.