What is best practice when fundraising in Offline Mode?

Offline mode should be used when WiFi and SIM connectivity are both unavailable, unstable or to preserve the battery life of the device. When donations are collected offline, connection should be re-established at the next available time to ensure all transactions are processed without disruption. Offline donations should be left on a device no longer than 24 hours. If left longer, the acquiring bank may consider these transactions suspicious and could decline some or all of them.

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