Sending the Max Amount
Are you attempting to send the max amount in your wallet, and still getting an insufficient funds error?
No need to manually enter that amount.
Once you have tapped on the amount field and are ready to enter the figure you intend to send you can simply tap 'Send Max Amount' in the right corner of the amount pop up modal.
This will automatically subtract the network fees for the transaction and send the highest possible amount in your wallet after that network fee is deducted.
Edge does not make any money from these fees, as 100% of the fee goes to the respective network to pay for confirmations.
In some cases, the network fees may exceed the amount of money in your wallet. This can happen when your wallet contains a large number of very small transactions.
You may receive this message when attempting to send all of your XRP. Every XRP address must keep a 10 XRP reserve balance. This rule is not unique to Edge it is an XRP network rule.
You may receive this error when attempting to spend incoming funds before they have 10 confirmations, or about 20-30 minutes. If an incoming transaction has less than 10 confirmations you'll see it's progress in your XMR wallet.