tymm

[vast meadow]

then continue collecting payment monthly at the 3rd month

[snow aurora]

You can modify/adjust the first Invoice for double the amount, apply a 100% discount for the second month, I think

[vast meadow]

hmmm but im giving proration for the first month

[snow aurora]

How is proration related here?

[vast meadow]

lets say my billing cycle is on 1st of every month
product 1 is $10/month
customer subscribe to product 1 on 15th of the month, so $5 for 1st month + $10 for next month, so $15 in total

[snow aurora]

Okie, so you just adjust the first Invoice by append $10 to it, regardless of whatever amount is currently have based by proration

[vast meadow]

hmm i use subscription.create() to create the subscription and the invoice is generated and finalized automatically. how do i modify the invoice?

[snow aurora]

Great question! There are workarounds:

1. Create with a trial just a few seconds into the future. This way the first "trial" invoice would be $0 and finalized immediately. The next Invoice will be your "real" first Invoice and you will have time to modify it
2. Use Subscription Schedule, you will be able to edit the first Invoice.

[vast meadow]

ok from the looks of the doc it seems like subscription schedule is more elegant and can fulfill my usecase.
let me study it, thanks 😄