WooCommerce
WordPress catalogs
The catalog stays on the store. Card checkout opens on UGOpayme, then the order comes back paid.
Integrations/WooCommerce/Plugin
Install the WooCommerce plugin once. WordPress cannot run UGOpayme itself.
Enable Instant Digital Coupon. Do not enter a merchant key, secret, API base, or public key.
UGOpayme already has this store's site address, webhook, and processor. Ops marks the store live there.
The shopper pays with Visa or Mastercard on hosted checkout. The store confirms the result with UGOpayme.