How To Fix GW233 - Incorrect communication type

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 233

• Message text: Incorrect communication type

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 GW233 - Incorrect communication type ?

  The SAP error message GW233 "Incorrect communication type" typically occurs in the context of SAP Gateway services, particularly when there is a mismatch or misconfiguration in the communication settings between the SAP system and the client application (such as an SAP Fiori app or an external system).
  Cause:
  
  Incorrect Configuration: The communication type specified in the service definition may not match the expected type. For example, if the service is defined for OData but the client is trying to access it using a different protocol.
  Service Activation Issues: The OData service may not be properly activated in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the service.
  Network Issues: There may be network-related issues preventing proper communication between the client and the SAP system.
  Version Mismatch: The client application may be using an incompatible version of the OData protocol.
  
  Solution:
  
  
  Check Service Configuration:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW) and verify the service definition.
  Ensure that the communication type (e.g., HTTP, HTTPS) is correctly set up.
  
  
  
  Activate the Service:
  
  Use transaction code /IWFND/MAINT_SERVICE to check if the service is activated.
  If it is not activated, activate it and ensure that the correct system alias is assigned.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the OData service.
  You can check this using transaction code SU53 after attempting to access the service.
  
  
  
  Review Network Settings:
  
  Check if there are any network issues, such as firewalls or proxies, that might be blocking the communication.
  Ensure that the correct URL is being used to access the service.
  
  
  
  Test with Different Clients:
  
  If possible, test the service using different clients (e.g., Postman, SAP Gateway Client) to see if the issue persists.
  
  
  
  Check for Updates:
  
  Ensure that both the SAP system and the client application are updated to the latest versions to avoid compatibility issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific version of SAP Gateway you are using, as there may be known issues or patches available.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Refer to the official SAP documentation for OData services and SAP Gateway for detailed configuration and troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the GW233 error in your SAP environment.