For the past 2+ years I have been using the same process/code to disabling/clearing activation lock from a device and since December 2 trying to clear the code is returning a 404 error response:
<head>
<title>404 Not Found</title>
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<body>
<center>
<h1>404 Not Found</h1>
</center>
<hr>
<center>Apple</center>
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</html>
we could not close the activation lock on the iPhone under supervision from our platform. We follow Apple's specifications https://developer.apple.com/documentation/devicemanagement/device_assignment/activation_lock_a_device/creating_and_using_bypass_codes The request link for closing the activation lock is https://deviceservices-external.apple.com/deviceservicesworkers/escrowKeyUnlock