How to change app name or calling name?

[EdnaGrapples]

In this example the apps name is FitActions and I have to call "Ok Google. Start running in Fitactions". When I would apply thatr in my app, for sure the apps name will not be FitActions. Assuming I named my app Kawabanga so that I want to trigger by Ok Google. Start running in Kawabanga . What do I need to change?

I changed it, and the App Action Tool plugin tells me "Preview Creation Error Status Code: 400 Message: Precondition check failed."

1. Loggen in on Android Studio with my Google developer Account
2. Logged in on Google Assistant on my phone with same account
3. Created google-services.json on Firebase Console for project kawabanga-12345 . Also in actions example replaced https://fitactions.firebaseapp.com/start{?exerciseType} by https://kawabanga-12345.firebaseapp.com/start{?exerciseType}

Is it really required to pusblish the appId in the Google Play Console? It is not mentioned in the steps earlier.
Whats wrong for the above error message and what am I missing?

[EdnaGrapples]

I already applied following refactorings - in vain:

• renamed app name, package naming with e.g. kawabanga
• created firebase project Kawabanga
• replaced all fit-actions accurrances accordingly in Manifest.xml, gradle files and actions.xml
• uploaded singed apk to Google Play store as internal testing

The created google-services.json says amongst others
"storage_bucket": "kawabanga-12345.appspot.com"
I replaces this also in the actions.xml with:
<fulfillment urlTemplate="https://kawabanga-12345.firebaseapp.com/start{?exerciseType}">
and also in the intent-filter:

            <!-- Define your supported deeplinks -->
            <intent-filter
                android:autoVerify="true"
                tools:targetApi="m">

                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="kawabanga-12345.firebaseapp.com"
                    android:scheme="https" />
            </intent-filter>

but I dont see where this is documented where to add what?