How To Fix APC_MESSAGE012 - Incorrect protocol type in local application &1

SAP Error Message - Details

• Message type: E = Error

• Message class: APC_MESSAGE - Message class for ABAP Channels (ATC Check only)

• Message number: 012

• Message text: Incorrect protocol type in local application &1

What causes this issue?

Incorrect protocol type in local application <(>&<)>1

System Response

Incorrect protocol type in local application <(>&<)>1

How to fix this error?

Launch the transaction SAPC and check the class specific setting for
"Protocol Type"

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message APC_MESSAGE012 - Incorrect protocol type in local application &1 ?

  The SAP error message APC_MESSAGE012 indicates that there is an "Incorrect protocol type in local application" for a specific application or service. This error typically arises in the context of communication between SAP systems or between an SAP system and external applications.
  Causes:
  
  Protocol Mismatch: The error often occurs when there is a mismatch in the communication protocols being used by the SAP application and the external system or service it is trying to connect to.
  Configuration Issues: Incorrect configuration settings in the SAP system or the external application can lead to this error. This includes settings related to network protocols, ports, or service endpoints.
  Version Incompatibility: If the SAP system and the external application are running different versions of the communication protocol, this can lead to incompatibility issues.
  Network Issues: Network-related problems, such as firewalls blocking certain protocols or ports, can also cause this error.
  
  Solutions:
  
  Check Protocol Configuration: Verify the protocol settings in both the SAP system and the external application. Ensure that they are configured to use the same communication protocol (e.g., HTTP, HTTPS, RFC).
  Review Connection Settings: Check the connection settings in the SAP system (e.g., RFC destinations, HTTP connections) to ensure they are correctly configured.
  Update Software: Ensure that both the SAP system and the external application are running compatible versions. If necessary, update one or both systems to ensure compatibility.
  Network Configuration: Review network configurations, including firewall settings, to ensure that the required ports and protocols are open and accessible.
  Consult Documentation: Refer to the SAP documentation or the documentation of the external application for specific configuration requirements related to communication protocols.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Logs and Traces: Review system logs and traces for more detailed error messages that can provide additional context about the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.