No, unfortunately it’s not always possible to scan your card. Most stores have the right scanners, but stores may still use old scanners or do not have the ability to scan a barcode from your OK app.
Fortunately, all your information is also displayed on the photos, so until that time you can show your card in your OK app to the shopkeeper. Now they can also view or take over all necessary info. For example, the date of birth on your ID or the number on your customer card.
Added IDs and cards will be placed directly in your Favorites, just like your debit cards. Now, these cards are only a swipe away. Your OK app always opens to your first picked Favorite. You can sweep through it horizontally to find the right card. Tap on it for more info.
In a shop, just pick the right card and let the barcode scan by the cashier. When you tilt your phone, the display becomes brighter and the size of the barcode becomes bigger. This makes it even easier to scan your card.