# Pre-check

To avoid task failures due to incorrect passwords, lack of permissions, or connectivity issues when starting a task, UDTS provides a pre-check function.

## Click [Purchase Now] after filling in the form

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- If a connectivity check failure occurs, please check whether the port and password are correct.
- If a permission error occurs, please refer to the [FAQ](/docs/udts/faq#%e9%97%ae%ef%bc%9amysql-%e5%85%a8%e9%87%8f%e8%bf%81%e7%a7%bb%e9%9c%80%e8%a6%81%e6%bb%a1%e8%b6%b3%e5%93%aa%e4%ba%9b%e6%9d%a1%e4%bb%b6) to find out the required permissions for this task type.
- If a configuration check failure occurs, please refer to the [Pre-check FAQ](/docs/udts/precheck_faq).