Based on sample code it looks like we should manipulate product name to pass our app’s home grown userIDs along to our web backend for processing. That makes sense. However, fortumo is also passing back some sort of unique id from the device as a query parameter user_id
http://developers.fortumo.com/in-app-purchasing-for-corona/receipt-verification/
According to those docs it is “An unique end-user identification string from the mobile application point of view. It could be an internal SIM card identification or a specific username defined by the application.”
I have 3 questions about this ID:
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Does this ID ever change on a given device? Does it stay consistent even when apps are uninstalled/reinstalled?
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Are we able to find out its value before we’ve made any payment requests?
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Are we able to set this value? I wouldn’t think so but it mentions “specific username defined by the application”
Thanks
-Joe