How To Fix UCS0122 - Communication error while starting task &1; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 122

• Message text: Communication error while starting task &1; see long text

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE UCS0_SPTA_ERROR_CAUSE OBJECT DOKU ID TX
Error text: &V2&&v3&
Previous message: &V4&

System Response

INCLUDE UCS0_SPTA_ERROR_RESPONSE OBJECT DOKU ID TX

How to fix this error?

INCLUDE UCS0_SPTA_ERROR_REACTION OBJECT DOKU ID TX

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0122 - Communication error while starting task &1; see long text ?

  The SAP error message UCS0122 indicates a communication error that occurs when starting a task in the SAP system. This error can arise from various underlying issues, and understanding the cause and potential solutions is essential for troubleshooting.
  Causes of UCS0122 Communication Error
  
  
  Network Issues: Problems with the network connection between the SAP application server and the database or other systems can lead to communication errors.
  
  
  Configuration Errors: Incorrect configuration settings in the SAP system, such as RFC (Remote Function Call) destinations, can cause communication failures.
  
  
  System Load: High system load or resource constraints can lead to timeouts or failures in task execution.
  
  
  Authorization Issues: Insufficient authorizations for the user or service account trying to start the task can result in communication errors.
  
  
  Service Availability: The service or task that is being called may not be available or may have crashed.
  
  
  Firewall or Security Settings: Firewalls or security settings may block communication between different components of the SAP landscape.
  
  
  Solutions to UCS0122 Communication Error
  
  
  Check Network Connectivity: Ensure that there are no network issues. You can use tools like ping or traceroute to check connectivity between the SAP application server and the database or other systems.
  
  
  Review Configuration Settings: Verify the configuration of RFC destinations and ensure that they are correctly set up. Use transaction code SM59 to check and test RFC connections.
  
  
  Monitor System Performance: Check system performance metrics to see if there are any resource bottlenecks. You can use transaction codes like ST03N or SM66 to monitor system load.
  
  
  Check User Authorizations: Ensure that the user or service account has the necessary authorizations to execute the task. You can use transaction code SU53 to analyze authorization issues.
  
  
  Service Status: Check the status of the service or task that is being called. Ensure that it is running and available.
  
  
  Firewall and Security Settings: Review firewall settings and security configurations to ensure that they are not blocking the required communication ports.
  
  
  Review Logs: Check the SAP system logs (transaction SM21) and application logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  
  Restart Services: If the issue persists, consider restarting the relevant services or the entire SAP system, if feasible.
  
  
  Related Information
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for your specific version of SAP, as there may be version-specific considerations or known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem continues after trying the above solutions, it may be necessary to contact SAP support for further assistance.