Price settings:
This page allows you to update an existing subscription price It defines how much and how often users are charged for a selected plan
Editable on in Stripe side
Plan
It reflects the name of the corresponding product in Stripe Displays the billing type (e.g. Monthly) and the internal plan ID
External ID The Stripe Price ID associated with this price Used to synchronize price data between web2wave and Stripe
External code (lookup_key) Optional Stripe lookup key for the price Can be used to retrieve or manage the price via the Stripe API or webhooks. It is passed at the moment of purchase. There could be several Stripe Prices with same lookup_key, but with different Subscription schedule periods.

Editable on in Stripe side
Currency The currency in which the subscription is charged.
Amount The price charged per billing period.
Period interval The number of periods between charges.
Period The billing period unit (MONTH, YEAR, etc.)
Additional Currencies Extra amounts for the same price in other currencies, so a visitor can be charged in the currency of their country. Configured in web2wave on the price itself — see Multicurrency and Auto Currency Switching for the full setup and for the paywall toggle that activates it.
Introductory offers
The Introductory offers & Trials card creates a Stripe Subscription Schedule. You can add up to two introductory phase rows before the regular Until canceled row. The first row can also include free trial days. Each introductory phase can have its own period and amount, but each phase must be no longer than the main billing period.
The legacy Subscription trials fields create a free trial or first-period Coupon on a normal Stripe Subscription. The two configuration methods are mutually exclusive.
See Stripe subscription schedules vs first-period discounts to choose the correct price settings and checkout.
Stripe Subscription Schedules require the Stripe Checkout Form. The Stripe Embedded Form supports only the legacy Subscription trials fields; it does not attach schedule phases.