Send SMS to your clients from WHMCS through Twilio — notifications, alerts and campaigns
Made and supported by Projektif Digital Ltd. Runs inside PD Modules, the panel every module installs into.
PD Twilio SMS lets a hosting company text its clients from WHMCS through its own Twilio account. Clients get a text when an invoice is created or paid, when a service is activated or suspended, when staff reply to a ticket and when a domain renewal fails. Your team gets a text when a new order lands or something goes wrong. You can also run a campaign to a filtered group of clients. Twilio bills you at its own per-message rate, with no marked-up credits in between.
It is built for hosts who already use Twilio, or who want its reach and its Messaging Services, and who want SMS to work as part of WHMCS rather than as a separate dashboard to log in to.
Your Twilio account, your rate. You connect your own Account SID and credentials, so every text is billed by Twilio at its own price. We sell no credits and add no margin.
Texts at the moments that matter. Email about a failing card gets filtered, but a text gets read. Triggers send on invoice created, invoice paid, service activated, service suspended or unsuspended, staff ticket replies, failed domain renewals and client sign-ins.
Know the cost before you send. The Send screen counts segments the way Twilio bills them: 160 characters for GSM-7, 70 for Unicode, with emoji and extension characters counted correctly. Campaigns show the audience and the segment total before you commit.
Honest delivery records. When Twilio answers that a message failed or was undelivered, History records it as failed, not as sent. No message is shown as delivered when it may not have been.
Consent built in. Clients choose which kinds of text they receive, promotional texts are agreement-only by default, and an opt-out made while a message waits in the queue is respected.
A safe way to trial everything. The Test gateway records messages in History without calling Twilio, so you can build templates and triggers without spending a penny.
The setup guide in the panel also covers the things that trip people up with Twilio: trial-account limits, geographic permissions (error 21408) and A2P registration (error 30007).
The pages render on WHMCS's Six, Twenty-One and Nexus themes, and their wording can be changed in a file that survives updates.
PD Twilio SMS is one paid module with everything included: triggers, campaigns, staff alerts, client preferences and the Test gateway. There are no tiers. It installs into PD Modules in one click and uninstalls cleanly. Customers' text preferences are kept when you uninstall, on purpose, so consent is never lost.
If you also send through Amazon SNS, Vonage, Clickatell or another HTTP gateway, PD SMS Manager covers all of them in one module, and the two can run side by side.
If your subscription ever lapses, your data is kept. After a 14-day grace period admin features lock, then customer-facing features stop and automatic texts pause until you renew.
Yes. PD Twilio SMS sends through your own Twilio account, so you pay Twilio's own per-message rate — there are no marked-up message credits from us.
Yes — add the built-in Test / Debug gateway. It records every message in History and can email them to an admin inbox without making any Twilio API calls. Trial your templates and triggers cost-free before going live.
Your Account SID, a credential — your Auth Token or an API Key SID and secret — and at least one Twilio phone number (or a Messaging Service SID). All are in the Twilio Console.
A phone number is a single sending number — fine for low volume. A Messaging Service pools multiple numbers together and is recommended for production use: it handles geographic routing, number rotation and improves deliverability at higher volume.
Yes. There is no separate Sender ID box: the sender is the gateway's From. Put an alphanumeric sender ID (up to 11 characters) in From where every country you text accepts one, or add it as an Alpha Sender on a Twilio Messaging Service and put the service's SID in From — Twilio then uses the name where it is allowed and a number from the pool elsewhere. The US does not accept alphanumeric senders.
No. Each client manages their text-message preferences on their own Account Details page, beside their email preferences, and every automatic trigger honours them. You choose which preferences are offered and whether each starts on or has to be agreed to — promotional messages are agreement-only, as prior consent requires. Messages you send by hand are unaffected.
Everything — one-off sends, templates, automatic per-event notifications, message history, the sending queue, bulk Campaigns (with a cost estimate) and the per-admin Alert Center. One licence, no second tier.
An SMS holds 160 GSM-7 characters (70 for emoji messages). Longer messages are split into segments and Twilio bills per segment. The Send screen's Count segments and the campaign builder's preview show the segment count before you send, so there are no surprises.
Yes — the cron drains the sending queue and progresses campaigns. Keep your normal WHMCS cron running (every 5 minutes is standard).
Yes. Provider secrets are encrypted at rest and are never echoed back to the browser after saving. On the production channel the module code is ionCube-encrypted, protecting the decryption logic.
PD SMS Manager adds Twilio plus Amazon SNS, Vonage, Clickatell and a Custom HTTP gateway all in one module. The two modules can run side-by-side in the same WHMCS.
Only what you already pay your provider. PD Twilio SMS adds no per-unit fee and takes no cut — it connects to your own account with your own credentials, so the provider bills you directly at your rates, and you set what you charge your customers. From us it is the module subscription and nothing else.
To send a text, the recipient's number and the message go to the SMS provider you connected — your own account with them, under your own agreement with that provider; nothing about your clients comes to us. Apart from the texts themselves, which your SMS provider carries, your customers' data stays in your WHMCS. To confirm your licence, the platform sends us four things and nothing else: your licence key, the domain, your server's own IP address and the directory it is installed in — the four values recorded against your licence in your client area. Alongside that we see which module and version you run and whether its licence is healthy, so we can ship compatible updates. We never receive your clients' personal data, your credentials, or the contents of your WHMCS. Crash reports are off unless you turn them on, and a diagnostic report is only ever sent when you send one, after showing you a preview you can edit.
WHMCS 9 or later, on PHP 8.2 or later. It installs alongside whatever else you run — it adds its own tables and templates rather than modifying WHMCS files, so it does not collide with other vendors' modules or with a customised theme. Uninstalling removes its own tables and settings. The text-message preference tickboxes on your clients' profiles are kept on purpose: they record your clients' consent, which is yours to keep.
Send SMS to your clients from WHMCS — notifications, alerts and campaigns
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