# SSTI_EVENT_CUSTOM_BUTTON (SSTI API Event)

Fires when tenant presses the custom button (previously set up using SSTI_API_CUSTOM_BUTTON).

## Variables

The following table shows input values (you send them with the API call) and returned output values.

| Variable |     | Required | Description |
|----------|-----|----------|-------------|
| *link_message* parameters: |     |          |             |
|          | num |          | SSTI_EVENT_CUSTOM_BUTTON |
|          | str |          | \-- not used -- |
|          | id  |          | tenant UUID |