This guide would help you to set up 5 letter prefix for TL ISPs
Go to More Settings and scroll down to find the TL API Proxy Username Prefix section
Enter a maximum of 5 letters for the proxy username prefix and click Save. This will be used as the first 5 letters of your TL API proxy username
This prefix can contain only letters and numbers. Spaces and special characters are not allowed.
Last updated 1 year ago