How To Fix CD118 - &1 RFC calls failed &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CD - Change Documents

• Message number: 118

• Message text: &1 RFC calls failed &2

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 CD118 - &1 RFC calls failed &2 ?

  The SAP error message CD118, which states "RFC calls failed," typically indicates that there is an issue with Remote Function Call (RFC) communication between SAP systems or between an SAP system and an external system. This error can occur for various reasons, and understanding the cause is essential for troubleshooting.
  Causes of CD118 Error
  
  
  Network Issues: Problems with the network connection between the systems can lead to failed RFC calls. This could be due to firewalls, routing issues, or network outages.
  
  
  Configuration Errors: Incorrect configuration of RFC destinations in the SAP system can cause communication failures. This includes incorrect settings in transaction SM59.
  
  
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to execute the function module or access the required data.
  
  
  System Availability: The target system may be down or not reachable, leading to failed calls.
  
  
  Timeouts: If the RFC call takes too long to respond, it may time out, resulting in an error.
  
  
  Resource Limitations: The system may be experiencing resource limitations (e.g., memory, CPU) that prevent it from processing the RFC call.
  
  
  Solutions to CD118 Error
  
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Ensure that the connection type is correct (e.g., T for TCP/IP).
  Test the connection using the "Connection Test" option in SM59.
  
  
  
  Review Authorizations: Check the user authorizations for the user ID being used for the RFC call. Ensure that the user has the necessary permissions to execute the function module.
  
  
  Check System Status: Verify that the target system is up and running. You can check the system status in transaction SM51 or by logging into the target system.
  
  
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the RFC destination configuration.
  
  
  Monitor System Resources: Use transaction SM50 or SM66 to monitor system resources and check for any bottlenecks that may be affecting performance.
  
  
  Check Logs: Review the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages or information that may provide insight into the issue.
  
  
  Related Information
  
  RFC (Remote Function Call): A protocol used in SAP for communication between different SAP systems or between SAP and non-SAP systems.
  Transaction Codes:
  
  SM59: RFC Destination Configuration
  SM21: System Log
  ST22: Dump Analysis
  SM50: Process Overview
  SM66: Global Process Overview
  
  
  
  By following these steps, you should be able to identify and resolve the underlying issue causing the CD118 error in your SAP system. If the problem persists, consider reaching out to SAP support for further assistance.