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Use this endpoint under limited circumstances

This endpoint should only be used for changes that would not result in a charge to the customer's account, and only for blocks of quantity to specific products. If used outside this specific scenario, it can result in a large number of follow-up actions taking place. Webhooks, charge regeneration, invoice regeneration, and integrations will all be affected, so its use should be kept to a minimum.

If you need to make multiple changes or changes that would result in charges, use either the Update Subscription for multiple items at once or Update Subscription Product for a single product.

Sample Requests

POST /v1/SubscriptionProductQuantityChange?preview=false&showZeroDollarCharges=false&temporarilyDisableAutoPost=true HTTP/1.1
Host: secure.fusebill.com
Authorization: Basic {{apikey}}
Content-Type: application/json

{
  "subscriptionProductId": 10711645,
  "deltaQuantity": 4
}

POST /v1/SubscriptionProductQuantityChange?preview=false&showZeroDollarCharges=false&temporarilyDisableAutoPost=true HTTP/1.1
Host: secure.fusebill.com
Authorization: Basic {{apikey}}
Content-Type: application/json

{
  "subscriptionProductId": 10711645,
  "deltaQuantity": -2
}