Amplitude

To integrate Amplitude go to Integrations > Amplitude and set credentials.

You need to enter API Key into Adapty. To find a token go to your Project settings in Amplitude. In case you need help refer to official docs.

SDK configuration

Use Adapty.updateProfile() method to set amplitudeDeviceId or amplitudeUserId. If not set, Adapty uses your user ID (customerUserId) or if it's null Adapty ID. Make sure that the user id you use to send data to Amplitude from your app is the same you send to Adapty.