Help Center

Phone and texting

Your phone number, US texting registration, text and WhatsApp messages, opt-outs and delivery problems.

• Get a phone numberBuy a number for your business so you can text customers, receive their replies and use texting in workflows.
• Register for US texting (10DLC)Register your business with the US carriers so your texts to US numbers are delivered, step by step.
• What your registration status meansRead the US texting registration checklist line by line, and know when something needs you.
• Texting costs and your balanceWhat numbers, texts, WhatsApp messages and registration cost, how a text is counted in segments, and what happens when your balance runs low.
• Send a text to a listText a group of contacts now, at a set time or in batches, and track how it went under Marketing › SMS.
• Connect WhatsAppPut your business number on WhatsApp so customers' WhatsApp messages land in your inbox and you can reply and send templates.
• WhatsApp templates and the 24-hour ruleWhen you can write freely on WhatsApp, when you need an approved template, and how to create, sync and send one.
• Opt-outs (STOP) and texting compliance settingsHow STOP, START and HELP work, and how to set the opt-out line, your business sign-off and the Texas rule.
• Daily sending limits and texting pausesWhy a new number can only send so many list texts a day, how the limit rises, and what happens when too many people opt out.
• Troubleshoot texts that weren't deliveredEvery reason a text or WhatsApp message is refused or doesn't arrive, in the words the app uses, and what to do about each.
• Manage texting for your clientsFor agencies, see every client's number, registration, limit and delivery in one table, move numbers between clients, and set what new clients start with.