How To Fix /SAPAPO/RSP728 - Error when setting up connection

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RSP -

• Message number: 728

• Message text: Error when setting up connection

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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RSP728 - Error when setting up connection ?

  The SAP error message /SAPAPO/RSP728 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the connection setup, often related to the integration between SAP APO and other SAP systems or databases. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP APO system and the connected system (e.g., SAP ERP).
  Configuration Errors: Incorrect configuration settings in the RFC (Remote Function Call) destination or in the APO system settings.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations.
  System Availability: The target system may be down or not available for connections.
  Version Compatibility: There may be compatibility issues between different versions of SAP systems.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the systems is stable and operational. You can use tools like ping or traceroute to diagnose network issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination used for the connection. Ensure that the settings (like target host, system number, client, user, and password) are correct.
  Test the connection from SM59 to see if it is successful.
  
  
  
  Review Authorizations:
  
  Ensure that the user ID used for the connection has the necessary authorizations in both the source and target systems. Check roles and profiles assigned to the user.
  
  
  
  Check System Status:
  
  Verify that the target system is up and running. You can check the system status in transaction SM51 or by contacting your system administrator.
  
  
  
  Review Logs:
  
  Check the application logs for more detailed error messages. You can use transaction SLG1 to view logs related to the specific application.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  Check Version Compatibility:
  
  Ensure that the versions of the SAP systems involved are compatible. Sometimes, updates or upgrades can lead to compatibility issues.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring connections in SAP APO.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to diagnose and resolve the /SAPAPO/RSP728 error effectively.