STEP 1 Navigate to https://appleid.apple.com/.
STEP 2 At Security > App-Specific passwords, click
STEP 3 A pop up will show saying, "Use an app-specific password to sign in to an app or service not provided by Apple.".
Type in any word that you prefer in the box, which will serve as the label for the App-Specific password (the next screen will show your actual app-specific password).
STEP 4 Copy the
auto-generated app-specific password (this will be in the format xxxx-xxxx-xxxx-xxxx) that is shown and paste this in your MyStudio Control Panel > Custom App Setup > Apple > Developer Information >
Step 1 "Enter the Apple Developer App Specific Password".