How To Fix 26102 - Error in communication table

SAP Error Message - Details

• Message type: E = Error

• Message class: 26 - Dokumentenverwaltung

• Message number: 102

• Message text: Error in communication table

What causes this issue?

Work with the archiving system is controlled via communication tables.
As errors have occurred in the communication table, inform your system
manager.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 26102 - Error in communication table ?

  The SAP error message 26102, which indicates "Error in communication table," typically arises during data transfer processes or when there are issues with communication between different components of the SAP system. This error can occur in various contexts, such as during data uploads, downloads, or when interfacing with external systems.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP system and the database or external systems can lead to communication errors.
  Configuration Errors: Incorrect settings in the communication configuration, such as RFC (Remote Function Call) destinations, can cause this error.
  Database Issues: Problems with the database, such as locks, deadlocks, or connectivity issues, can lead to communication errors.
  System Load: High system load or performance issues can result in timeouts or failures in communication.
  Authorization Issues: Lack of proper authorizations for the user or system trying to perform the communication can also trigger this error.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and any external systems or databases is stable and functioning correctly.
  Review Configuration Settings: Verify the configuration of RFC destinations and other communication settings in the SAP system. Ensure that they are correctly set up and pointing to the right targets.
  Monitor Database Performance: Check the database for any locks, deadlocks, or performance issues. Use database monitoring tools to identify and resolve any underlying problems.
  Analyze System Load: Monitor the system load and performance metrics. If the system is under heavy load, consider optimizing processes or increasing system resources.
  Check Authorizations: Ensure that the user or system performing the communication has the necessary authorizations to execute the required actions.
  Review Logs: Check the SAP application logs (transaction SLG1) and system logs (transaction SM21) for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific scenarios related to error 26102.
  Transaction Codes: Familiarize yourself with transaction codes like SM58 (for monitoring asynchronous RFC calls) and ST22 (for analyzing dumps) to troubleshoot further.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation and resolution.