update_billing_customer
Change a billing (Stripe) customer's name and/or email and keep the matching Sapphires contact in sync (created if missing). invoice_footer sets the default footer on every invoice for this customer (recurring ones too). customer_id is the Stripe cus_… id.
Parameters
- customer_id (string, required)
- name (string)
- email (string)
- invoice_footer (string)