# Twilio Validation Error

Twilio Validation Error Runs based on the Twilio Lookup response before sending an SMS or making a call. Number Validation has to be enabled in Agency Twilio Settings.

## Filters

### Error Is

This filter will allow you to separate the numbers that are either text-enabled or not valid at all. based on that, you can remove the landline numbers from your sms campaign and completely remove the numbers that are invalid.

<figure><img src="https://3379043218-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhRoDQv6gyGL2CyFV4Oob%2Fuploads%2FHnrsbmRdQ6WKPkXQtQ7z%2Fspaces_SpDxRsrRdNpxcuWtIMiA_uploads_git-blob-2ba8748629c73ea21cc9fb3e5294d5745198c7bd_WF%20Trigger%20-%20Filter%20-%20Twillo%20-%20Error%20is.png?alt=media&#x26;token=10c34186-dd53-4f9d-bf28-d053e384b052" alt=""><figcaption></figcaption></figure>
