Giriraj

[vernal hound]

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• Giriraj, 23 hours ago, 20 messages
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• Giriraj, 2 days ago, 66 messages

[regal spruce]

i doing like this

[torpid meadow]

You'd update the Subscription directly: https://stripe.com/docs/billing/subscriptions/upgrade-downgrade

[regal spruce]

it's giving me this error

[torpid meadow]

Yep, seems correct. What's the issue?

Yes, you're missing the id parameter of the si_xxx you want to update. That API call you've shared it just adding a new item

stripe.subscriptions.update(
  'sub_xxxxxxxxx',
  {
    items: [
      {
        id: 'si_xxx',
        quantity: 6
      },
    ],
  }
);