| rollback | A previously made subscription upgrade is rolled back. For example, a customer increased the quantity of the subscription items from 3 to 7, and they want to change it back to 3. |
| incqty | A customer increases either the number of product licenses attached to the subscription item, or the data limit related to the subscription. |
| updNextBD | The billing date of a customer's subscription was changed. |
| renewed | A subscription was renewed. |
| renTypeUpd | The subscription renewal type has been updated from automatic to manual or vice versa. |
| renewalReq | A subscription renewal has been requested via theRenewSubscription REST API endpoint. |
| new | A customer signed up for a subscription. |
| add | A customer added a new subscription item to an existing subscription. |
| deactivate | A subscription was deactivated, and it won't be renewed automatically on the renewal date. |
| downgrade | A customer's current subscription product is switched to a lower-priced substitute via the UpdateSubscriptionItem or UpdateSubscriptionItemPrice REST API endpoints. |
| reinstate | A previously deactivated subscription or subscription item has been reactivated. |
| remove | A subscription item was removed from the subscription. |
| update | A subscription item was updated via the UpdateSubscriptionItem or UpdateSubscriptionItemPrice REST API endpoints. |
| upgrade | A customer's subscription capabilities are expanded via the UpdateSubscriptionItem or UpdateSubscriptionItemPrice REST API endpoints. |
