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WordPress plugin
Fast2SMS – OTP Login & SMS Notifications
Add OTP login , checkout OTP verification , WhatsApp and SMS order notifications , abandoned cart recovery , COD verification and bulk campaigns to WordPress and WooCommerce with the official Fast2SMS plugin. The plugin is completely free. Bring your own Fast2SMS API key — messages are billed to you
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 5.8 and PHP 7.4.
SourceWordPress plugins · Oct 19, 2026
01 / Source details
About this tool.
Add OTP login , checkout OTP verification , WhatsApp and SMS order notifications , abandoned cart recovery , COD verification and bulk campaigns to WordPress and WooCommerce with the official Fast2SMS plugin.
The plugin is completely free. Bring your own Fast2SMS API key — messages are billed to your own Fast2SMS wallet at your account rates, and delivery reports stay in your own Fast2SMS panel. No monthly fee, no per-site licence.
WooCommerce order notifications — 25+ events
- Order placed, pending payment, payment received, processing, on hold, completed, cancelled, refunded, partially refunded, failed and customer notes
- Shipped, delivered and partially shipped — the statuses set by shipment-tracking plugins
- Custom order statuses detected automatically : every status registered by your courier or workflow plugin (In Transit, Out for Delivery, RTO, Packed…) gets its own automation with its own template
- Pending-payment reminder with a pay-now link that cancels itself once the order is paid
- COD order alerts, one-tap COD OTP verification link to cut RTO, and a COD-to-Prepaid nudge inviting COD customers to pay online
- Abandoned cart recovery with a configurable delay
- Review request a set number of days after the order is completed
- Back-in-stock alerts — customers subscribe on out-of-stock products and are messaged when you restock
- Welcome message for new customers, and an optional admin copy of every message
- Admin alerts for new orders, low stock and out-of-stock products
Templates, variables and previews
- SMS, WhatsApp, or both per event — pick approved DLT / WhatsApp templates straight from your Fast2SMS account with a searchable picker and variable mapping
- 25+ built-in variables: customer, order, items, totals, coupon, shipping method, pay link, order-status link and more — plus any order meta key as a custom variable (tracking IDs, custom checkout fields)
- WhatsApp media headers (image, video, PDF) with an auto-generated PDF invoice you can attach with {invoice_url}
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