ProductFields API id = null for billing_frequency_cycles

Hi,

The /v1/productFields API returns all fields as expected apart from billing_frequency_cycles for which It returns an id of null. Is that correct?

For us to be able to store values we are relying on the fact that the id is always a non-null value. If it by design that the id field can be null can we rely on the ‘key’ field to be unique?

Thanks