Nested organisation structures and multi-currency brands

Improved support for nested organisation structures and multi-currency brands via the POST:/organisations/brand/onboarding endpoint.

Brand Owner parameter

• New optional brandOwner field
• Lets you map nested relationships where your clients manage their own brands
• If left blank, ownership defaults to your organisation

Multi-currency billing

• The currency field is now treated as the billing currency
• You can support multiple transaction currencies under a single brandId
• Billing can happen in either the transaction currency or billing currency (converted at daily rates)
• No need to create separate brands per currency anymore