Before you can start using GS1 Picture It! you have to activate it in your Barcode Manager account.
To do this, log into Barcode Manager and scroll down on the dashboard until you see the Picture It! box and toggle the button to Active as shown below.
After you've activated your account, click the link next to the toggle button which will bring up a unique QR code. Scanning this QR code in the GS1 Picture It! app will link your phone to the Barcode Manager account.
To scan the QR code, open the GS1 Picture It! app, give permission to access your camera, and then scan the QR code when the screen looks like this:
If the scan is successful, the app will now be linked to your Barcode Manager account and you can start taking photos of your products!
You can use these links to find more information about The GS1 Picture It! app and Using GS1 Picture It!.