How To Fix MM_PUR_CNTRL_CONTR029 - Could not connect the SAP S/4HANA hub system to system &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: MM_PUR_CNTRL_CONTR - Messages in Central Purchase Contract

• Message number: 029

• Message text: Could not connect the SAP S/4HANA hub system to system &1.

What causes this issue?

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

The HTTP connection from the SAP S/4HANA hub system to back-end system
&V1& could not be established.

System Response

The job status for back-end system &V1& is set to Failed.

How to fix this error?

Schedule the full import or delta import again.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM_PUR_CNTRL_CONTR029 - Could not connect the SAP S/4HANA hub system to system &1. ?

  The SAP error message MM_PUR_CNTRL_CONTR029 indicates that there is an issue with connecting the SAP S/4HANA hub system to another system (denoted as &1 in the error message). This error typically arises in scenarios involving the integration of different SAP systems, such as when using the Central Procurement functionality or when trying to connect to a different backend system for procurement processes.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP S/4HANA hub system and the target system.
  Configuration Errors: Incorrect configuration settings in the SAP system, such as RFC destinations or logical system settings.
  Authorization Issues: The user or service account being used to connect may not have the necessary authorizations to access the target system.
  System Downtime: The target system may be down or undergoing maintenance.
  Incorrect System Alias: The system alias or name used in the connection might be incorrect or not defined in the system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the two systems is active and stable. You can use tools like ping or traceroute to test connectivity.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI and check the RFC destination that is being used to connect to the target system. Ensure that it is correctly configured and test the connection.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings in the SAP S/4HANA hub system. Ensure that the logical system names and other relevant settings are correctly defined.
  
  
  
  Check Authorizations:
  
  Verify that the user or service account has the necessary authorizations to connect to the target system. You may need to consult with your security team to ensure proper roles are assigned.
  
  
  
  System Status:
  
  Confirm that the target system is up and running. If it is down, you may need to wait until it is back online.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SLG1) for any additional error messages or details that could provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific version of SAP S/4HANA you are using, as there may be known issues or patches available.
  
  
  
  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.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Administration: Involve your SAP Basis team if the issue persists, as they can provide deeper insights into system configurations and network settings.
  
  By following these steps, you should be able to diagnose and resolve the MM_PUR_CNTRL_CONTR029 error effectively.