1.Not opted in for bpn.
2.Opted in for bpn and then disabled bpn at browser level.
3.Opted in for bpn and then cleared website data.
3.Fluctuating Internet connection / switch off machine.
4.Web browser process activity idle during the "time to live" campaign.
5.End of the "time to live" of the bpn campaign.
6.FCM failed to deliver bpn (We don't have more information about it Eg. FCM error 500).
7.Browser Token id - expired.
8.Unable to update netcore's javascript cache rule - internet issue,firewall blocking js.
9.Browser token id added to smartech panel after bpn campaign is live.
10.Integration issue - wrong create & register function value,Multiple sw.js, sw.js not in root directory
11. Mismatch between collected and targeted website.