pascal_lin | Stripe Developers | Page 1

solemn warrenBOT Nov 9, 2022, 9:43 AM

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scenic rain Nov 9, 2022, 9:43 AM

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Hi there!

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What do you mean by "control the time factor of the price calculation formula"?

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Can you give a concrete example?

weary wagon Nov 9, 2022, 9:44 AM

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scenic rain Nov 9, 2022, 9:45 AM

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Yes, so you can set proration_date to a timestamp to when the proration will happen.
So you can set it to the present moment, or in one hour, or at the end of the day. It's up to you.

weary wagon Nov 9, 2022, 9:45 AM

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how can I use this field to control subscription billing🤔

scenic rain Nov 9, 2022, 9:46 AM

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Does my answer above help?

weary wagon Nov 9, 2022, 9:50 AM

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Do you mean if I setting this field to specific UTC 00:00am time of next day, it will calculate by daily precisely?

scenic rain Nov 9, 2022, 9:51 AM

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I'm not sure what you mean "by day". But it you set it to midnight, then the proration will be calculated as if the change happened at midnight.

weary wagon Nov 9, 2022, 9:53 AM

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emm... how does a subscription calculate the price?

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I think I have got your opinion🤔 , this field is not control the price calculation of a subscription, it is only control the time gap to calculate the variable price...am I right?

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Do you mean there is no time unit in price calculation, it is a linear formula?

scenic rain Nov 9, 2022, 10:07 AM

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Let me give you an example:

You create a $10 monthly subscription on the 1st of the month
Then, after on the 15th of the month, you change the subscription price to $100
What should happen? If you set the proration date to the date of the change, and with proration_behavior: 'always_invoice', there there will be a new invoice with:
-$5, for the unused time on the original $10 plan
and +$50, for the remaining time on the new plan
So the total is $45.

weary wagon Nov 9, 2022, 10:14 AM

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so what should I passing the proration_date value now, if I want the user paid $45, not $44.9 or any number with decimal point?🤔

distant quiver Nov 9, 2022, 10:17 AM

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👋 taking over for my colleague. Let me catch up.

weary wagon Nov 9, 2022, 10:17 AM

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actually, in my situation, it is not exactly a precise number🤔

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hi

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thanks for all your supporting🙏

distant quiver Nov 9, 2022, 10:21 AM

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no worries I read through, would you mind elaborating more on your question

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I'm not sure I follow

weary wagon Nov 9, 2022, 10:23 AM

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I want to understand how a subscription calculation the price while I upgrade it😂

distant quiver Nov 9, 2022, 10:24 AM

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my colleague gave you a very detailed example

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what part is confusing?

weary wagon Nov 9, 2022, 10:25 AM

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in my situation, I am following this docs to preview a proration, but I found that it is not a precise number if I passing proration_date parameter to current tiemstamp

Prorations

Learn about prorations.

distant quiver Nov 9, 2022, 10:26 AM

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that's normal because we're going to do a proration meaning that we're going to divide with the cycle duration and then multiply with the used time to get the used amount

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which will most probably produce a decimal point number

weary wagon Nov 9, 2022, 10:26 AM

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in your colleague example, I will get a $44.5 or any other number instead of $45😂

distant quiver Nov 9, 2022, 10:26 AM

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it depends on the time, not just the date

weary wagon Nov 9, 2022, 10:27 AM

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so if I want to get $45 dollar for example, should I pass 00:00am of today to proration_date ?

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okay, I think I should following stripe rules instead of making a other precise rules in my system.

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thanks🙇‍♂️

distant quiver Nov 9, 2022, 10:31 AM

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weary wagon okay, I think I should following stripe rules instead of making a other precise ...

I guess so 😊

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it's easier

#pascal_lin