The access token received from the authorization server in the OAuth 2.0 flow.
The id of the business
"biz_GA6EG2qFxA97NZHtxeLPUy"
The id of the transaction
"txn_WQMDNUHpBThYSNh4AprDBo"
Comma-separated list of related objects to include. Supported: invoice_payments.invoice
Successful Response