Help Center/ Migration Center/ FAQs/ Server Migration/ How Do I Fix the Error "SMS-Workflow.0503: SMS migration task failed. SMS.xxxx?"

Updated on 2025-03-10 GMT+08:00

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How Do I Fix the Error "SMS-Workflow.0503: SMS migration task failed. SMS.xxxx?"

Symptom

In a server migration workflow, the step for executing full replication or incremental synchronization failed on a source server, and the error message "SMS-Workflow.0503: SMS migration task failed. SMS.xxxx" was displayed.

Possible Causes

During a migration, an SSH connection must be established between the source server and target server. If the SSH connection cannot be established, the migration will fail.

Solution

Click the task name to go to the details page of the SMS task.
Check the error cause and error code, and rectify the fault by referring to the following links:
- SMS.380x SSH Connection Failures
- SMS.0303 Unable to Access Domain Name

Parent Topic: Server Migration

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