Customers who have not deposited their cryptocurrency within Poloniex will need to do so themselves. In order to send cryptocurrency to Poloniex, you must enter the wallet information (destination) for each cryptocurrency in Poloniex in your own wallet (source). Here's how to get the wallet information for each cryptocurrency in Poloniex.
Open your wallet page on the exchange and go to "deposit".
Select the cryptocurrency you want to deposit.
ex)：If you select BTC
When you select a cryptocurrency, you will be able to choose which networks are available for deposits. If you are not particular, select the same network as the currency you want to send money to. In this example, it is "Deposit On Bitcoin".
Obtain the wallet information for each Poloniex cryptocurrency in the following way. To send money using a barcode Scan the barcode from your wallet. ※※Important※※：Please make sure that the destination currency and the source currency are the same. If you send money to a wallet with a different currency, it will be a wrong deposit and you will not be able to get it back.
To send money using an address You will need to copy the Poloniex wallet address string and paste it into your sending wallet. Click on the dot to the right of the address to copy the address, and then paste it into the destination field of the source address. ※※Important※※：Please make sure that the currency of the destination address is the same as the currency of the source address. If the currencies are different, it will be a wrong deposit and you will not be able to get it back. ※※Important※※：Please be sure to check that the address string is correct. If there is an error, it will be a wrong payment and you will not be able to get it back.