Installation

Requirements

Craft CMS 5.3 or later
Craft Commerce 5.0 or later
PHP 8.2 or later
A payment gateway that can store a payment method — or one that can't, see below

Install

composer require justinholtweb/craft-subscribr
php craft plugin/install subscribr

Will it work with my payment provider?

Ask it before you commit to anything:

php craft subscribr/gateways

GATEWAY                  RENEWS       SOURCES  PURCHASE   NOTE
Stripe                   automatic    yes      yes        also a Commerce subscription gateway
Braintree                automatic    yes      yes
Bank transfer            manual       no       yes

  Bank transfer: This gateway cannot store a payment method, so renewals are raised as unpaid
  orders and the subscriber is emailed a link to pay them.

Subscribr never asks whether a gateway "supports subscriptions". It asks whether it can charge a stored token with nobody present — supportsPaymentSources() plus supportsPurchase() — which is true of very nearly every gateway written for Commerce.

A gateway where that is false is not shut out. It renews manually: the renewal is raised as an incomplete order and the subscriber gets a link that drops it into your own checkout. The same screen is in the control panel at Subscribr → Gateways.

Cron

Nothing renews until something sweeps. Three jobs:

*/5 * * * *  php craft subscribr/renewals/run
0    * * * *  php craft subscribr/dunning/run
0    8 * * *  php craft subscribr/gifts/deliver

renewals/run takes --queue, which fans out to Craft's queue with one job per subscription. Use it once you are past a few hundred subscribers, so one slow gateway call cannot hold up the sweep.

The schedule does not drift if a sweep runs late. The next payment date is computed from the date that was due, never from the moment the sweep happened to run — a queue that was busy until 03:07 does not push everybody's billing date seven minutes later every month.

Before you wire up cron, see what a run would do:

php craft subscribr/renewals/due

That takes no money. It lists what is due, what each one would be charged, and whether it would renew automatically or be invoiced.

Your first plan

Subscribr → Plans → New plan. A name, a handle, and a cadence is enough to start.
Pick a recurring price mode. "Locked" is what a subscriber means by price for life; "inherit" means a catalogue price rise reaches existing subscribers at their next renewal.
Add the plan to a product page as an option key on an ordinary add-to-cart form — see Usage.

Permissions

Five, under Subscribr in the user group settings:

Permission	Allows
`subscribr-viewSubscriptions`	See the subscriptions index and any subscription
`subscribr-manageSubscriptions`	Pause, resume, cancel, skip, change plan, edit a subscription
`subscribr-billSubscriptions`	Take a payment: "renew now", retry a declined card
`subscribr-managePlans`	Create and edit plans and boxes
`subscribr-manageDunning`	Create and edit dunning sequences

The last two are separate from the first three on purpose: the person who handles a customer's billing question is usually not the person who should be able to change what every plan costs.