How To Fix /PM0/AB_IBC_COMPARE002 - Communication error with source &1; Check the RFC destination

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/AB_IBC_COMPARE -

• Message number: 002

• Message text: Communication error with source &1; Check the RFC destination

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 /PM0/AB_IBC_COMPARE002 - Communication error with source &1; Check the RFC destination ?

  The SAP error message /PM0/AB_IBC_COMPARE002 Communication error with source &1; Check the RFC destination typically indicates that there is a communication issue between the SAP system and a remote system or service. This error is often related to Remote Function Call (RFC) destinations, which are used to connect to other SAP systems or external systems.
  Causes:
  
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect connection parameters, such as the target system's hostname, service name, or system number.
  
  
  Network Issues: There may be network connectivity issues between the SAP system and the target system. This could be due to firewall settings, network outages, or incorrect routing.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  
  
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  
  
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured, preventing communication.
  
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the relevant RFC destination and check its configuration.
  Ensure that the connection parameters (like target host, system number, and client) are correct.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" option to verify if the connection can be established successfully.
  
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable from the SAP server.
  Ensure that there are no firewall rules blocking the communication.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations in both the source and target systems.
  
  
  
  Check Target System Status:
  
  Verify that the target system is up and running. If it is down, coordinate with the system administrators to resolve the issue.
  
  
  
  Review SAP Gateway Configuration:
  
  Ensure that the SAP Gateway is running and properly configured. You can check the status of the gateway using transaction SMGW.
  
  
  
  Check Logs for More Details:
  
  Review the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages that might provide more context about the issue.
  
  
  
  Related Information:
  
  RFC Destinations: RFC destinations are defined in transaction SM59. They can be of different types, such as TCP/IP connections, ABAP connections, or HTTP connections.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for relevant notes in the SAP Support Portal.
  Documentation: Refer to SAP documentation for detailed information on configuring and troubleshooting RFC connections.
  
  By following these steps, you should be able to identify and resolve the communication error indicated by the error message /PM0/AB_IBC_COMPARE002.