How to Send a Mass Text to Customers (2026 Guide)

A mass text is one message sent to many recipients at once, where each person receives it as a private, individual text. Done right, a recipient cannot tell it went to anyone else: it arrives from your business number, reads like a personal message, and their reply comes back only to you.

That last part matters. A mass text is not a group chat. In a group chat, everyone sees everyone else's number and every reply. For business messaging (sales announcements, appointment reminders, shift offers, event updates) you want individual delivery, not a group thread.

US law and carrier rules require that recipients agree to receive your texts before you send them. For marketing or promotional messages, the TCPA requires prior express written consent: a signup form, a checkbox at checkout, a text-to-join keyword, or a signed form all work. Keep a record of who consented, when, and how.

Texting purchased or scraped lists is both illegal in most cases and a fast way to get your number blocked by carriers. If you have not collected consent yet, start there. The full rules are in our SMS compliance guide.

There are three realistic ways to text a large list:

This guide covers the platform path, since it is the only one that scales past a few hundred recipients and keeps you inside carrier rules. See the mass texting overview for what that looks like in Quick Send Business.

US carriers require every business sender to verify who they are and why they are texting. On a platform, this means completing a registration profile: your legal business name, EIN, website, sample messages, and a description of how people opt in.

With Quick Send Business, every plan includes a toll-free number, and we submit the verification paperwork for you from one form. Carrier review typically takes 1 to 2 weeks for toll-free numbers and 1 to 3 business days for optional local (10DLC) numbers. Start registration on day one so approval is done before you need to send. The details are in how registration works and the toll-free vs 10DLC guide.

Export your contacts from wherever they live today (a CRM, a spreadsheet, a booking system) as a CSV with at least a phone number column. A first-name column is worth including for personalization.

• Map your CSV columns to contact fields, including any custom fields you need.
• Let the importer validate and format every number, and deduplicate the list.
• Import opt-out status if you have one, so past opt-outs are honored.
• Organize contacts into lists (by location, role, interest) so you can target sends.

Short, specific, and personal wins. A good mass text:

• Identifies your business in the first line, since recipients may not have you saved.
• Uses merge fields like {first_name} so each message reads like it was written for the recipient.
• Has one clear call to action: reply YES, tap a link, show this text.
• Stays inside one or two segments when possible. An SMS segment is about 160 characters; longer messages cost more credits. Emojis and special characters reduce the per-segment limit.
• Includes opt-out language in promotional sends, such as "Reply STOP to unsubscribe."

Always send a test to your own phone first. Check that merge fields resolve, links work, and the message does not split into more segments than you expected. Preview with real contact data if your platform supports it.

Then pick your send time. Midday on weekdays typically performs well, and carrier rules plus several state laws restrict marketing texts to roughly 8am to 9pm in the recipient's local time. Launch, then watch delivery and reply counts come in live.

A mass text worth sending gets replies. Route them into a shared team inbox so the right person answers each conversation, and nothing sits unread on someone's personal phone. Assignment and full conversation history keep the whole team on the same page.

Opt-outs must be automatic: a STOP reply should immediately suppress that contact from all future sends. Quick Send Business handles STOP and HELP keywords and suppression for you on every plan.

• Sending before registration is approved. Unverified traffic gets filtered by carriers and can get your number flagged.
• Blasting a stale list. Old numbers mean failed deliveries and complaints. Recent, consented contacts perform dramatically better.
• Writing email-length messages. Every 160 characters is another segment. Say one thing, clearly.
• No plan for replies. If people answer and nobody responds, you burn the trust the channel is built on.
• Ignoring frequency. More than a few texts per month makes opt-out rates climb fast. Send when you have something worth saying.

Curious what this costs at your volume? See the mass texting cost guide or go straight to pricing.