Setting payment transaction numbers for personalized tracking

You can now set the transactionNumber field when you create a payment (POST /v3/payments) or bulk payment (POST /v3/payments/bulk).

You can set transactionNumber as a unique alphanumeric value for your system to track a payment transaction. The value must be 50 characters or fewer. If you do not set transactionNumber, BILL sets this field as a unique alphanumeric payment identification value.

See /v3/payments in the API reference for more information.