Receiving a payment
There are a number of ways in which you can receive payments to a given account in your ElectrumSV wallet. At this time, they all involve having the other party pay to a new address obtained from your account’s receive tab.
Two ways that someone can make a payment are:
You copy the displayed address and give it out.
The other party takes a photo of the displayed QR code and their wallet software lets them pay to it.
Giving out an address
The oldest way to receive a payment is to give out an address from your wallet to the other party, and then wait for them to pay you. In the future, this will not be supported, but for now it is. The shown address is automatically replaced with another address, as the wallet detects that the shown address was used in an incoming payment. This kind of works, but not really, to assist the user in always giving out a new fresh previously unused address.
The flaw in paying to addresses is that the other party has no way to know that the address they get, is the one that you tried to give them. Because they look like random letters and numbers it is possible that they can be replaced without either party knowing before it is too late. While reports of this happening are rare, it might be worth taking precautions to make sure this does not happen to you.
You can copy the address, paste it in an email and send it to the recipient. Paste it into a chat application. Or get it to them in any number of possible ways.
Using a QR code
If the other party is standing there with you, you can show them the receiving tab and they can take a photo of the QR code with their wallet. Their wallet will extract the address and streamline the payment process. You can fill out the fields with a requested amount to also include that in the QR code, which further streamlines the process.
Identifying incoming payments
In the legacy model, which is still the most common one, payments are fire and forget. The payer constructs a transaction and broadcasts it to the blockchain. Then when your wallet gets a notification a payment of interest has appeared in the blockchain, it retrieves that transaction and factors it into the related account.
With this model, the wallet has no idea a payment is incoming until it arrives out of the blue. A new and better model is available in the form of Paymail, but ElectrumSV does not have the service infrastructure to support it at this time. We are however working towards it.