10DLC (Ten-Digit Long Code) is the US carrier registration program required for any business sending SMS from a standard 10-digit number. Without it, messages get heavily rate-limited or blocked outright. How it applies to you depends on which messaging setup your shop uses.
Default shops: nothing to register
Most shops send SMS through SalesThumb's own shared Twilio account, which is registered under a single ISV 10DLC brand and campaign that covers every shop on the platform. If you're on the default messaging setup, there's no 10DLC form for you to fill out — it's already handled.
Bring Your Own Carrier: you register directly with Twilio
High-volume shops can connect their own Twilio account instead (Settings → Integrations → Bring Your Own Carrier) so their sends stop counting against the platform spend cap and they pay Twilio/carriers directly. If you go this route, 10DLC registration happens with Twilio, outside of SalesThumb — you (or Twilio support) register your brand and campaign directly in the Twilio Console. Once that's approved and you have a working Twilio Account SID, Auth Token, and verified from-number, paste those three values into the Bring Your Own Carrier card in Settings → Integrations to connect. SalesThumb verifies the credentials against the Twilio API on save.
What to expect during Twilio's own registration
If you're registering your own campaign with Twilio, the most-rejected fields are: - Sample message — a typical message, not a marketing blast. "Hi Sarah, your ceramic install is scheduled for Tue 10am. Reply YES to confirm." passes review more reliably than promotional copy. - Use case — "mixed" if you'll send both transactional (reminders) and promotional (review requests) messages; "marketing only" gets stricter carrier limits. - Opt-in language — how customers consent to SMS, e.g. "Customers provide their phone number at quote time and explicitly opt into SMS at booking."
Twilio's registration fees and approval timelines are set by Twilio and the carriers, not SalesThumb — check the current fee schedule and typical review time in your Twilio Console before you budget for it.
Confirming your 10DLC status
There's no separate 10DLC status page in SalesThumb. The place to check messaging health is Messages → Deliverability: if your delivery rate or failure rate falls outside the healthy range, the page surfaces a warning banner that lists incomplete A2P 10DLC registration as one of the common causes, alongside invalid phone numbers and carrier content filtering.