# When a negative Payment is attached to an Invoice, trigger Process Automation.

When the payment being attached to an Invoice is negative, you can optionally call this trigger to see if any process automation is configured to notify internal team members.

Endpoint: POST /billing-negative-payment-process-automation/{invoiceKey}
Version: v1
Security: apiKeyAuth, bearerAuth

## Header parameters:

  - `vbasoftware-database` (string, required)
    Target database

## Path parameters:

  - `invoiceKey` (integer, required)
    Invoice Key


## Response 202 fields

## Response 401 fields