How To Fix KE_HDB032 - Communication error when calling RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: KE_HDB - Message Class for Accelerated CO-PA

• Message number: 032

• Message text: Communication error when calling RFC

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 KE_HDB032 - Communication error when calling RFC ?

  The SAP error message KE_HDB032, which indicates a "Communication error when calling RFC," typically arises when there is an issue with the Remote Function Call (RFC) communication between the SAP system and the HANA database or another SAP system. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP application server and the HANA database or the remote system.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect connection parameters or missing entries.
  Database Availability: The HANA database may be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to access the required resources.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the systems.
  SAP Kernel or Software Bugs: There may be bugs in the SAP kernel or the software version that could lead to communication errors.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP application server and the HANA database is stable and functioning. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination used for the connection. Ensure that the connection type, target host, and system number are correct.
  Test the connection using the "Connection Test" option in SM59.
  
  
  Check Database Status: Ensure that the HANA database is up and running. You can check the database status using HANA Studio or other monitoring tools.
  Review Authorizations: Verify that the user credentials used for the RFC call have the necessary authorizations. You can check user roles and authorizations in transaction SU01.
  Firewall and Security Settings: Ensure that there are no firewall rules or security settings that are blocking the required ports for RFC communication.
  Update SAP Software: If the issue persists, check for any available patches or updates for your SAP system that may address known bugs related to RFC communication.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions for the KE_HDB032 error.
  Transaction Codes: Familiarize yourself with transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to gather more information about the error.
  SAP Community: Consider checking the SAP Community forums for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.