ionic e capacitor

[rodigo55235523]

Good afternoon
Max Lynch mlynch I need a tip from you ,
and the first time I'm going to publish an app in the store
I ran all the command to sign the apk
everything went right
,but when it's time to upload the app.release.aab file to the playStore
a message appeared

the "appId": "io.ionic.starter", already exists in the playstore

this message comes from the capacitor.config.json file
{
"appId": "io.ionic.starter",
"appName": "my app",
"webDir": "www",
"bundledWebRuntime": false
}
what has to change here in the "appId": "io.ionic.starter",?
can i put my email
because I don't have a website or blog

I appreciate if you can help me