An App ID (or App Identifier) represents one or more applications in Apple’s system.It consists of two components listed below:
App Identifier is a mandatory requirement for generating the following documents.
1. iPhone Provisioning Profile
2. Push Notification Certificate
You'll be required to create two different App Identifiers for generating the above-listed documents. While the process is the same for generating both App IDs, the difference is in the Bundle ID that you'll enter for each App ID.
We will discuss this further in the relevant section of this article.
The following steps will guide you to create an App Identifier (App ID).
Once you’ve generated the App ID for that Bundle ID, repeat the process to create another App ID with the second Bundle ID.