curl --request POST \
  --url https://api.withorb.com/v1/customers/external_customer_id/{external_customer_id}/sync_payment_methods_from_gateway \
  --header 'Authorization: Bearer <token>'

{
  "type": "https://docs.withorb.com/reference/error-responses#400-constraint-violation",
  "status": 400,
  "detail": "<string>",
  "title": "<string>"
}