How To Fix SRTWEB021 - Invalid external alias &1 specified

SAP Error Message - Details

• Message type: E = Error

• Message class: SRTWEB - Messages for Web Administration UI

• Message number: 021

• Message text: Invalid external alias &1 specified

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRTWEB021 - Invalid external alias &1 specified ?

  The SAP error message SRTWEB021 indicates that there is an issue with an external alias specified in a web service call. This error typically occurs in the context of SAP's web service runtime (SRT) when the system cannot find or recognize the external alias that has been provided.
  Cause:
  
  Invalid Alias: The external alias specified in the web service call does not exist or is incorrectly defined in the system.
  Configuration Issues: There may be a misconfiguration in the web service settings or the service registry.
  Transport Issues: If the alias was recently created or modified, it may not have been transported correctly to the system where the error is occurring.
  Authorization Issues: The user or service account may not have the necessary permissions to access the specified alias.
  
  Solution:
  
  
  Check Alias Definition:
  
  Go to the SAP system and check the definition of the external alias in the SRT configuration.
  Ensure that the alias exists and is correctly configured.
  
  
  
  Review Web Service Configuration:
  
  Navigate to the relevant web service configuration in transaction SOAMANAGER.
  Verify that the service is correctly set up and that the external alias is correctly referenced.
  
  
  
  Check Transport Requests:
  
  If the alias was recently created or modified, ensure that the transport requests have been properly imported into the target system.
  
  
  
  Authorization Check:
  
  Ensure that the user or service account making the web service call has the necessary authorizations to access the external alias.
  
  
  
  Testing:
  
  Use tools like SOAP UI or Postman to test the web service call with the specified alias to see if the issue persists.
  
  
  
  Logs and Traces:
  
  Check the application logs (transaction SLG1) and the SRT logs for more detailed error messages that might provide additional context.
  
  
  
  Related Information:
  
  SRT Configuration: Familiarize yourself with the SRT configuration settings in SAP, which can be accessed through transaction SOAMANAGER.
  Web Service Documentation: Review the documentation for the specific web service you are trying to call, as it may provide insights into the expected parameters and configurations.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to the SRT and external aliases.
  
  By following these steps, you should be able to identify and resolve the issue related to the SRTWEB021 error message.