Always check inside the app for the latest deposit address to use when depositing crypto. If you deposit funds to an older address, they may be lost permanently.
Deposits from an external cryptocurrency wallet will not show up in the Abra wallet until the transaction has met the right amount of confirmations on its blockchain. For example, a Bitcoin transaction will need at least two confirmations on the Bitcoin blockchain before it will reflect in your wallet (LTC and ETH will also need at least one confirmation on their blockchains).
All transactions must be confirmed on its blockchain before they can be withdrawn to an external wallet/account or exchanged for another currency.
Only the 'send funds' transactions between Abra users will show up instantly.