alpamayo-coupon

[raven sluice]

it's in Checkout, then no, it doesn't support using a coupon that reduces the price beyond the minimum amount(about 50c)

[short geode]

sorry to ask here in this thread

so its not possible for subscription too using checkout session?

like my Basic subscription is $10 and I have $10 coupon too

[raven sluice]

its possible for subscriptions yes(Checkout in mode:subscription)

just not for one time payments (mode:payment)