**Source URL:** https://general.veevavault.dev/medical/omnichannel/guides/creating-custom-applications.md
# Creating Custom Applications
Your custom Omnichannel application must include both UI and custom logic.
## Creating the Call Controls UI {#creating-the-call-controls-ui}
Your custom application must include HTML and CSS to create the UI elements agents will use from the Call Controls UI. These Call Controls appear within MedInquiry. Some telephony providers offer embeddable interfaces that you can use in your application.
The following example shows HTML to create a simple UI with buttons that correspond to Omnichannel JS API events.
```
```
## Creating Custom Logic {#creating-custom-logic}
You must import Omnichannel JS API into your application.
```
import {
omniconnectEvent,
AgentStatus
} from "./vault-medical-omniconnect-{version}{release}.js";
```
You can find the `version` and `release` in the filename of the downloaded API. For example, `vault-medical-omniconnect-24.2.0-release10001.zip`.
When your application is complete, you must deploy it to the platform of your choice. Make a note of the application URL as you will need it to configure the *Connection* record in the next step.
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