--- title: Set up Authorize.net description: "Connect Authorize.net to Ultimate Membership Pro with your API Login ID and Transaction Key, set the response URLs, and test one-time and recurring payments in Sandbox." url: "https://ultimatemembershippro.com/docs/set-up-authorize-net/" updated: "2026-10-19" category: Payments --- # Set up Authorize.net 15 minIntermediateUltimate Membership Pro 14.2+ Ultimate Membership Pro can [take card payments through Authorize.net](https://ultimatemembershippro.com/integrations/payment-gateways/), a card gateway with fraud filters and automatic recurring billing. Recurring Memberships are paid with a card form on your checkout page; one-time Memberships send members to Authorize.net's hosted payment form. This guide connects Authorize.net, sets the URLs Authorize.net reports payments to, and runs Sandbox tests for the Coaching Club site. Before you start - You have an Authorize.net merchant account, with recurring billing enabled if you sell recurring plans. For testing, an [Authorize.net Sandbox account](https://developer.authorize.net/hello_world/sandbox.html). - You have a paid Membership, for example **Pro Monthly** at $19/month. See [Create your first Membership](https://ultimatemembershippro.com/docs/step-2-create-levelssubscriptions/). - Your site should use HTTPS, because recurring plans collect card details on your checkout page. ## What Authorize.net supports One-time Memberships **Access types** : LifeTime, Limited Time, Date Range **Checkout** : Redirect to Authorize.net's hosted payment form **Currency** : Your site currency is sent with the payment Recurring Subscription **Checkout** : Card form on your checkout page **Cycles** : 7 to 365 days or 1 to 12 months **Trials** : Free trials, as a number of billing cycles The card form for recurring plans asks for **Name on the Card**, **Credit Card Number** and **Expiration** (MMYY). Recurring charges use your Authorize.net account's currency. ## Open the Authorize.net settings 1. Go to Ultimate Membership Pro*›*Payment Gateways. 2. Find **Authorize.net** and click Complete setup (**Manage** once it's active). [![Authorize.net row on the Payment Gateways screen with the Complete setup button highlighted](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-01-list-row-v2.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-01-list-row-v2.png) Authorize.net on the Payment Gateways screen. The page is called **Authorize.net Gateway**. Its badge shows Inactive, Sandbox or Live. ## Turn on the gateway [![Authorize.net Gateway page with the Activate Authorize.net Payment Service switch highlighted and the 7-day note](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-02-setup.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-02-setup.png) Switch on Activate Authorize.net Payment Service. Activate Authorize.net Payment Service Makes Authorize.net available at checkout. It's offered to members only when this is on and both **Login ID** and **Transaction Key** are filled in. Default: **Off** The note under the switch is a reminder that recurring plans need a cycle of at least 7 days. ## Add your Login ID and Transaction Key In Authorize.net, go to **Account** and, under **Security Settings**, open **API Credentials & Keys**. That's where you find your Login ID and Transaction Key. Your Sandbox account has its own pair. [![Authorize.net Settings card with Sandbox selected, fake Login ID and Transaction Key, the Webhook URL and the Test Credentials, numbered 1 to 5](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-03-settings-v2.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-03-settings-v2.png) Authorize.net Settings in Sandbox mode for the example site. 1Environment Sandbox sends payments to Authorize.net's test system; Live takes real payments. Use the credentials of the matching account. - **Sandbox** - **Live** Default: **Live** 2Login IDRequired Your API Login ID. 3Transaction KeyRequired Your Transaction Key. Keep it secret. Setup Instructions Where to set the URLs and find the credentials, shown on the screen for reference. 4Webhook URL The address Authorize.net reports payments to (next step). Use the copy button next to it. 5Test CredentialsSandbox A test card for Sandbox payments: `370000000000002`, expiry 12 of next year. [Authorize.net's testing guide](https://developer.authorize.net/hello_world/testing_guide.html), linked above the table, lists more test cards. ## Set the response URLs in Authorize.net [![Webhook URL box with https://yoursite.com/?ihc_action=authorize highlighted](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-04-webhook.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-04-webhook.png) Copy the Webhook URL. ``` https://yoursite.com/?ihc_action=authorize ``` 1. In Authorize.net, go to **Account** and open **Transaction Format Settings**. 2. Set **Silent Post URL** to the Webhook URL. 3. Set **Response/Receipt URLs** and **Relay Response** to the same URL. Authorize.net then posts the result of each one-time payment, and of every recurring charge after the first, to your site: Approved The order becomes Completed and the Membership is activated or extended. Declined or error The payment failed and the Membership is taken off the member's account. Held for review Nothing changes until Authorize.net sends the final result. The first payment of a recurring plan is confirmed straight away at checkout, when Authorize.net accepts the subscription. ## Set how Authorize.net appears at checkout [![Extra Settings card with Label Authorize, Position 3 and Short Description, numbered 1 to 3](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-05-extra.png)](https://ultimatemembershippro.com/wp-content/uploads/2026/10/ump-authorize-net-05-extra.png) Extra Settings with the default values. 1Label The name of this payment method at checkout, for example Credit card. Default: **Authorize** 2Position The order of this gateway among the payment methods at checkout. Lower numbers come first. Default: **3** 3Short Description Optional text about the gateway, saved with its settings. Click Save Changes. ## Test a payment 1. With **Environment** on Sandbox and your Sandbox credentials saved, buy **Pro Monthly** in a private window. 2. Choose Authorize.net at checkout. In Sandbox, the card form shows a Sandbox Mode box and is filled with a test card. Complete the purchase. 3. Check Ultimate Membership Pro*›*Payment History: the order is **Completed** and the subscription appears in your Authorize.net Sandbox account. 4. Buy a one-time Membership such as **Annual Pass** too. You're sent to Authorize.net's payment form; pay with a test card and check that the order becomes Completed. When both work, switch Environment to Live, paste your live credentials, set the same URLs in your live account, and save. Limits to know - Recurring cycles must be at least 7 days. - Cycles can be at most 12 months or 365 days. - Trials are counted in billing cycles (Couple cycles subscription payments). - Trials are free. - On Going plans are created in Authorize.net with 9999 payments. - Cancel subscriptions and make refunds in your Authorize.net account. Test both flows One-time and recurring Memberships use different Authorize.net screens. Test one of each in Sandbox before you go live. ## Example: Coaching Club on Authorize.net **Coaching Club**Pro Monthly by card on the site, Annual Pass on Authorize.net's payment form. **Environment** : Sandbox while testing, then Live **Login ID, Transaction Key** : From Account › API Credentials & Keys **Silent Post URL, Response/Receipt URLs, Relay Response** : https://yoursite.com/?ihc_action=authorize **Pro Monthly** : Recurring Subscription, 1 Months, $19 **Annual Pass** : Limited Time, $149, one payment **Label** : Credit card ## Troubleshooting Why isn't the Membership activated after a member submits the card form for a recurring plan? Authorize.net didn't accept the subscription, so no payment was taken. Check the Environment and the credentials, that recurring billing is enabled on your account, and that the card details are valid. Why do the card fields turn red at checkout? A card field is empty: the name, the card number or the expiration date. The expiration date must be in MMYY format, for example 1227. Why does a one-time order stay Pending after payment? Authorize.net couldn't post the result to your site. Check that Silent Post URL, Response/Receipt URLs and Relay Response are set to https://yoursite.com/?ihc_action=authorize and that your site is publicly reachable. What's the shortest recurring cycle? Authorize.net's shortest recurring cycle is 7 days. Use 7 days or more. How do I cancel an Authorize.net subscription? Cancel the subscription in your Authorize.net account. See [Manage your members](https://ultimatemembershippro.com/docs/how-to-change-member-status/) to update the member's Membership on your site. ## What's next [**Create your first Membership**Set a cycle of 7 days or more.](https://ultimatemembershippro.com/docs/step-2-create-levelssubscriptions/)[**Let members choose a payment method**Offer Authorize.net next to other gateways.](https://ultimatemembershippro.com/docs/how-to-set-a-multi-payments-option/)[**Membership statuses explained**What Hold, Active and Cancelled mean.](https://ultimatemembershippro.com/docs/levels-colors-explanation/)[**Connect a payment gateway**Compare the other gateways.](https://ultimatemembershippro.com/docs/step-4-set-payment-gateway-if-applicable/)