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QR Code, One-Tap Link, or In-App Install: Choosing How Customers Receive Their eSIM

Most eSIM products treat delivery as an afterthought: the order succeeds, an email goes out with a QR code, done. Then the support tickets start. "The QR code won't scan." "It says the code is no longer valid." "I installed it but nothing happens." How the eSIM profile gets from your backend onto the customer's phone is a product decision, not a transport detail. You have roughly three options: a…

When delivering eSIM profiles to customers, companies typically send a QR code, a one-tap installation link, or install the profile inside their native app. Each method has its own advantages and potential issues. The QR code is the most common method, as it works on all eSIM-capable phones without requiring an app. However, it can fail due to various physical and timing-related issues, such as the customer being unable to scan the code while setting up the phone, the email containing the QR arriving on the same device, or the code being used only once.

To mitigate these issues, companies should display the activation code as copyable text alongside the QR code and instruct customers to use a second screen or manual code if needed. Additionally, a one-tap installation link can be used, which wraps the activation code in a URL that the operating system recognizes and hands over to the eSIM setup flow.

This method removes the need to scan the QR code and eliminates issues related to scanning the code while setting up the phone. However, it requires support for Apple's universal link format on iOS and testing on various Android devices and manufacturers. Lastly, installing the profile inside a native app allows the customer to tap "Install eSIM," confirm in a system dialog, and skip the QR code or link entirely.

This method eliminates both earlier failure modes. However, it requires carrier or approved partner entitlements on iOS and Android and shifts support responsibilities to the company handling the app, as any issues related to installation, compatibility, or activation will be addressed in-house. Regardless of the chosen method, logging essential information such as the order ID, ICCID, delivery path, timestamps, redemption status, and profile notifications is crucial to quickly diagnose and resolve any issues customers may encounter.

Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.

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