# 21245: Trunk Validation Error

Log Type: APPLICATION

Log Level: ERROR

## Description

### Possible causes

* Cannot use another account's SID as the Termination URI for this Trunk
* Cannot create more than one Trunk with the same Termination URI
* Credential List or IP-ACL already associated with Trunk

### Possible solutions

* Please update your Trunk settings to avoid the conditions stated above. Learn more: [Configure Trunks](/docs/sip-trunking#configure-trunks).