How long will the data will store in proficloud2.0?

Proficloud
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[*] How long will the historical data stored when the customer is using our profcloud?
[*] How long will the historical data stored when the customer don't renew proficloud?
[*] When the user deleted the device uuid in front-end of proficloud, the data will lost forever,right?
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Hi Xu Chuansen, in order to answer these questions, we need some more information about which services you’re talking about specifically. We’ll get in contact with you directly to help you out.