Only the six "Update N" blocks target invoice. Applying them in order:

- Update 1 sets duplicate_event to "first", inclusive_limit to true, max_refund_age_days to 30 and rounding to "per_line".
- Update 2 sets order to "created", refund_overflow to "reject", refunds_first to false and void_is_tombstone to false.
- Update 3 sets min_invoice_cents to 10 and status_case to "lower".
- Update 4 sets refund_overflow to "cap" and refunds_first to true.
- Update 5 sets currency to "CAD", fee_refundable to false, order to "id" and void_is_tombstone to true.
- Update 6 sets currency to "USD" and fee_refundable to true.

The updates never mention deployment_region, billing_account, owner_email or sla_percentile, so those are null.

{"rounding":"per_line","duplicate_event":"first","inclusive_limit":true,"max_refund_age_days":30,"refunds_first":true,"refund_overflow":"cap","void_is_tombstone":true,"order":"id","currency":"USD","fee_refundable":true,"min_invoice_cents":10,"status_case":"lower","deployment_region":null,"billing_account":null,"owner_email":null,"sla_percentile":null}