How To Fix LTR2_KB_MODEL019 - Unkown error when calling remote function module.

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_KB_MODEL -

• Message number: 019

• Message text: Unkown error when calling remote function module.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_KB_MODEL019 - Unkown error when calling remote function module. ?

  The SAP error message LTR2_KB_MODEL019 indicating "Unknown error when calling remote function module" typically arises in the context of SAP's Landscape Transformation (SLT) or related data replication scenarios. This error can occur due to various reasons, including issues with the configuration, network problems, or issues with the remote function call itself.
  Possible Causes:
  
  Network Issues: There may be connectivity problems between the source and target systems, which can prevent the remote function module from being called successfully.
  Authorization Issues: The user or service account executing the remote function module may not have the necessary authorizations to perform the operation.
  Configuration Errors: Incorrect configuration settings in the SLT or related systems can lead to this error.
  Function Module Issues: The remote function module being called may have its own issues, such as being inactive, missing, or having bugs.
  System Performance: High load on the system or performance issues can lead to timeouts or failures in executing remote function calls.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or telnet to check connectivity.
  Review Authorizations: Verify that the user or service account has the necessary authorizations to execute the remote function module. You can check this in transaction SU53 after the error occurs.
  Review Configuration: Go through the SLT configuration settings to ensure everything is set up correctly. Check for any inconsistencies or missing configurations.
  Check Function Module: Investigate the specific remote function module being called. Ensure it is active and functioning correctly. You can use transaction SE37 to check the function module.
  Monitor System Performance: Check the performance of the SAP system. If the system is under heavy load, consider optimizing performance or scheduling the operation during off-peak hours.
  Check Logs: Review the SLT logs and system logs (transaction SLG1 for SLT logs) for any additional error messages or warnings that could provide more context about the issue.
  SAP Notes: Search for relevant SAP Notes that might address this specific error. Sometimes, SAP releases patches or notes that provide fixes or workarounds for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, SE37, SU53, and SLG1 for troubleshooting.
  Documentation: Refer to SAP documentation for SLT and remote function calls for more detailed information on configuration and troubleshooting.
  SAP Community: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.