Hi @Reed Martin
If you are trying to use a shortcode phone number, then you will need to use an app that supports shortcode phone numbers.
Twilio is an option: https://www.twilio.com/en-us/messaging/channels/sms/short-codes
Zap App:
Twilio
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Supports shortcodes (with proper setup and approval)
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Send/receive SMS or MMS via shortcodes
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Great for 2FA, alerts, and marketing
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Requires shortcode provisioning with Twilio
A shortcode phone number is a special type of phone number, usually 5 or 6 digits long, used primarily for sending and receiving SMS (text messages) and MMS (multimedia messages).
Key Facts:
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Used by businesses to send automated messages (e.g., alerts, promotions, 2FA codes).
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Shorter than regular phone numbers, often easier to remember (e.g., 12345
or 678910
).
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Typically faster and higher throughput than regular long-code numbers.
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Must be approved and registered with mobile carriers to operate legally.
Types:
Examples:
Hey there, @Reed Martin! 
Did Troy’s reply help to point you in the right direction? We’d love to know whether Twilio worked out for you, or if you found a different solution.
Want to make sure you’re all set, so let us know how it’s going! 