connection string setup for multiple device (CA-222)

[aardrasystems]

Hi

I have been advised to post my question here by the support team.

I have about 3K devices that need to connect to the Azure IoT Hub, each device will need a unique connection string.

When I program the device at the factory level, how can I program each device with its connection string? For example when I am using UART , is it possible to write the connection string to secure part of the flash?

[MatthijsDoD]

Can anyone answer this issue? I have the same issue 🥇