{"id":17069,"date":"2026-07-14T15:02:52","date_gmt":"2026-07-14T09:32:52","guid":{"rendered":"https:\/\/www.fast2sms.com\/help\/woocommerce-otp-verification\/"},"modified":"2026-09-29T10:33:16","modified_gmt":"2026-09-29T05:03:16","slug":"woocommerce-otp-verification","status":"publish","type":"post","link":"https:\/\/www.fast2sms.com\/help\/woocommerce-otp-verification\/","title":{"rendered":"WooCommerce OTP Verification: Verify Mobile Numbers on Signup, Login and COD Orders"},"content":{"rendered":"

Fake numbers cost real money. A wrong digit at signup means order updates go nowhere. A bot account clutters your customer list. A COD order with an unreachable number often ends as a returned parcel you paid to ship both ways. WooCommerce OTP verification closes all three doors with one free plugin.<\/p>\n

Where verification stops the damage<\/h2>\n
\n \"Funnel
The OTP step sits between the form and your database. Only working numbers pass.<\/figcaption><\/figure>\n

The Fast2SMS plugin verifies mobile numbers at three points, each with its own switch:<\/p>\n

1. Verification at signup<\/h2>\n

New customers must verify their number with an OTP before the account is created. The verified number saves to the profile, ready for order updates and campaigns later.<\/p>\n

\n \"WooCommerce
No verified number, no account. Bots stop here.<\/figcaption><\/figure>\n

2. Verification at login<\/h2>\n

Customers log in with their verified number and a fresh OTP, on the My Account page or any page with the shortcode. Fewer forgotten passwords, fewer support emails.<\/p>\n

\n \"WooCommerce
OTP on both sides of My Account: login on the left, signup verification on the right.<\/figcaption><\/figure>\n

3. Verification on COD orders<\/h2>\n

Cash on Delivery is where unverified numbers hurt most. Turn on COD verification and every COD customer receives an OTP confirmation link. Verified orders get a badge in your orders list, so you ship the real ones first and call the doubtful ones.<\/p>\n

\n \"WooCommerce
COD orders confirmed by OTP mean fewer refused parcels and lower RTO losses.<\/figcaption><\/figure>\n

Setup in ten minutes<\/h2>\n
    \n
  1. Install the plugin:<\/strong> Plugins > Add New, search for Fast2SMS<\/strong>, activate. Or from WordPress.org<\/a>.<\/li>\n
  2. Connect your key:<\/strong> paste your Fast2SMS API key and validate.<\/li>\n
  3. Create an OTP ID:<\/strong> in the Fast2SMS panel’s Smart OTP section, choose SMS or WhatsApp with automatic fallback. How it works: Smart OTP explained<\/a>.<\/li>\n
  4. Flip the switches<\/strong> in the OTP & Login tab: registration verification, OTP login, COD verification. Run the built-in test and you are live.<\/li>\n<\/ol>\n
    \n \"WooCommerce
    Each verification point is one switch. Test the whole flow from the same tab.<\/figcaption><\/figure>\n

    What a verified customer list is worth<\/h2>\n

    Every verified number multiplies the value of everything else you send:<\/p>\n