Internal Error in subscription call.

[Aberna]

Question:

Internal Error when sending a callout notification in Workflow.

Request

https://rest.apisandbox.zuora.com/v1/subscriptions

{
"accountKey": "XXX",
"autoRenew": true,
"contractEffectiveDate": "2020-04-06",
"initialTerm": null,
"initialTermPeriodType": "Month",
"renewalTerm": null,
"renewalTermPeriodType": "Month",
"subscribeToRatePlans": [
{
"chargeOverrides": [
{
"billingTiming": "IN_ADVANCE",
"listPriceBase": "Per_Billing_Period",
"quantity": "0.000000000",
"triggerDate": null,
"triggerEvent": null,
"productRatePlanChargeId": "XXX",
"billCycleType": "ChargeTriggerDay",
"billCycleDay": null,
"billingPeriod": "Month",
"billingPeriodAlignment": "AlignToCharge",
"upToPeriods": null,
"endDateCondition": "Subscription_End",
"upToPeriodsType": null,
"specificBillingPeriod": null,
"specificEndDate": null,
"weeklyBillCycleDay": null,
"description": "Shadow Charge",
"ChargeShadowId__c": "600"
}
],
"productRatePlanId": "XXX"
},
{
"chargeOverrides": [
{
"quantity": "0.000000000",
"triggerDate": null,
"triggerEvent": null,
"productRatePlanChargeId": "XXX",
"weeklyBillCycleDay": null,
"description": "Shadow Charge",
"ChargeShadowId__c": "601"
}
],
"productRatePlanId": "XXXXX"
}
],
"termType": "EVERGREEN",
"invoiceOwnerAccountKey": "XXX"
}

Below is the error message in the response body. 
{
"success": false,
"processId": "BB2815D737831C75",
"reasons": [
{
"code": 53000000,
"message": "Oops, internal error occurred, please try it again, and if it still doesn't work, please contact Zuora support."
}
]
}

Reason for failure:

If you are giving USD as your Trigger Event, then there should be a date given in the trigger date.

Solution:

If you want the system to use the contract effective date as the trigger date, please pass "UCA" as the trigger event.