# Pass integration identifier information

Source: https://developer.avalara.com/vat-ecom/certification-requirements/pass-integration-identifier/

**Element type:** Required

**Endpoints/Models used:** N/A

## Technology partners

You must provide information about your integration as a signature in each transaction in the [HTTP client profile header](https://developer.avalara.com/avatax/client-headers/). This is provided to you after initially engaging with Partner Launch and can be configured using the [AvaTax SDKs](https://developer.avalara.com/sdk/). The structure of the client header is as follows:

`(app name); (app version);...`  

Where

-   `app name` corresponds to your application name.

-   `app version` is provided to signed partners by the Partner Launch team and corresponds your integration's version ID.

The unique client ID identifies calls made from your integration and the Avalara audit logs. Email [dg-partnerlaunch@avalara.com](mailto:dg-partnerlaunch@avalara.com) if you don't have this information.

## API customers

Though not required, API customers should pass in their AvaTax account number for the `app name` and the `app version`.