# 21728: Campaign registration failed due to length validation failures

Log Type: APPLICATION

Log Level: ERROR

## Description

We could not register your US A2P Campaign because one or more field(s) do not satisfy length requirements.

### Possible causes

One or more field(s) do not satisfy length requirements.

### Possible solutions

Please fix the error and retry Campaign registration. Please check out our [support article](https://support.twilio.com/hc/en-us/articles/8959909733403-Changes-to-the-A2P-10DLC-Campaign-Creation-Process) to read about the length requirements on these fields.