Encountering the question 'Can I take your phone number?' from the cashier while paying at the supermarket or clothing store has almost become routine. Many people think this is just a standard procedure, but in fact, stores collect this information for a specific purpose. This data is also used to get to know you based on your shopping habits.
So, what do companies do with our number, do they really just send discount messages? Let's see...
Stores create a customer profile by associating this number with your identity. Over time, your purchase frequency of certain products, your preferred brands, or your shopping habits are added to this profile. Thus, every purchase means a new piece of data about you.
These data are not only used within the store. Some retail chains also share this information with marketing companies. As a result, advertisements tailored to your shopping preferences also come directly to you. So, the phone number you give at the checkout leaves a unique digital trace of you, without you even realizing it.
Stores can send you special discounts, coupons, or reminders based on your purchase history. While this may seem like an advantage for some customers, constant notifications can become annoying over time. Moreover, each campaign message also means a new piece of marketing data.
Nowadays, most stores have switched to a point collection system using phone numbers instead of carrying cards. This is both practical and one of the easiest ways for the store to collect data.
With each purchase, you earn points through your number but at the same time, you share more information. Digital receipts work on a similar principle; each digital receipt sent via email or SMS means your personal data remains recorded in the system.
Yet, sharing your number is entirely up to you. There is no need to give your number either to purchase a product or to make a payment.
If you feel uncomfortable, you can politely decline. What's important is knowing what information you're willing to share and being able to protect your privacy.