You must completely configure your MMP to ensure accurate data tracking and optimal campaign performance. Complete all the steps listed below before you launch any campaign. Unless otherwise indicated, do each step in the Branch dashboard.
Configure Axon by AppLovin as a partner. To configure Axon by AppLovin as a partner, do the following:

Set your SDK key. After you select Axon by AppLovin as the ad partner, select the ACCOUNT SETTINGS tab. Enter your Axon by AppLovin SDK key in the SDK Key field to enable Axon by AppLovin as an ad partner. You can find this key in the Axon by AppLovin dashboard under Account > Keys .

Enable postbacks. Basic postbacks for events such as INSTALL and PURCHASE are automatically active after you enable Axon by AppLovin as your ad partner by completing Steps 1 and 2 above. To add more postbacks, do the following:
Select the POSTBACK CONFIG tab.
Click Add New Postback below the table of events.

Select the event you wish to add as a postback from the modal that appears on the screen.
Click Save.
Check the ENABLE and ALL EVENTS checkboxes in the row corresponding to the just-addded post-install event.
Click Save.

Verify link parameters. Branch automatically appends partner-specific link parameters during the link creation process. Select the LINK PARAMETERS tab to review and verify the link parameters that Branch automatically appends for Axon by AppLovin.

Configure attribution windows. To configure the attribution window settings and complete the Branch integration process, do the following:

Only send revenue that you generate from direct user payments for digital or physical goods or services.
Send:
Do not send:
Always send the full value the user is being charged (including all taxes and fees). If the transaction is not in USD, you may send the local currency amount and specify the currency of the transaction, or have your MMP handle the currency conversion to USD using the exchange rate of the day. Contact your MMP representatives if you have questions about currency reporting and exchange in checkout postbacks.