Advanced Implementation
This hub covers optional work you can add on top of the core flow in Implementation. Use it when you want stronger branding, pre-filled onboarding data, programmatic bills and vendors, category setup, linked-account control, customer activation toggles, webhooks, or to add it to a Banking build you've already configured.
You can adopt topics in any order; most teams start with theming and Implementation (if you have not finished the core embed yet), then add API Reference or Webhook Events as product needs grow.

Nothing here is required to ship Managed Bill Pay. Several features need Unit-side configuration (for example pre-fill or team-list endpoints, webhook subscriptions, or API tokens). When a page says to contact Unit, plan for that in your rollout.
- Theming — align the Managed Solution component with your brand.
- Implementation — core embed and setup if you have not finished it yet.
In this section
| Topic | What it’s for |
|---|---|
| Theming | Colors, logos, fonts, and settings-json for the Managed Solution component |
| Pre-filling User Information | Let Unit pre-fill the bill pay application from your API |
| API Reference | Bill Pay HTTP APIs (bills, vendors, categories, linked accounts, customer activation, reactivation URL) |
| Webhook Events | Real-time notifications for Bill Pay activity |
| Adding a Managed Solution | Adding Managed Bill Pay to a build you already have on the Unit Platform |