Create the HTTP request template

Go to Campaign settings → HTTP & Webhooks → + Create. Set: Method (GET, POST, PUT, PATCH, DELETE), URL (supports placeholders like %lead.id%), Request headers (e.g. Content-Type: application/json, Authorization), Request body (JSON payload with Hubhus placeholders). Enable URL encode placeholder values if placeholders appear in the URL path. Set a timeout appropriate for the external API response time.

Add a JSON map (optional)

A JSON map writes response values back to lead fields. After creating the template, click + New JSON map. Write one mapping per line: HubhusProperty=ResponseJsonKey. Use dot notation for nested JSON (key1.key2) and array indices (successes.0.lead_id). Hubhus properties: {{field-slug}} for custom fields, %lead_status_slug%, %assigned_person_email%. Map only applies when response is 2xx + valid JSON.

Test before using in production

Use the built-in tester: select the template, enter a Lead ID, review the generated request (URL, headers, body), and click Submit request. Inspect the response: status code, headers, body (formatted JSON), and any JSON map results. Fix issues before wiring the template into automation rules. Use Show all possible keys in the JSON map tester to discover available response paths.