Trying to send BTC

On Coinbase I'm now being asked where I'm sending the money. I have the option of self custody wallet or an exchange. If I click self custody wallet I need to either put in the recipients e-mail or click sending to myself. If I click sending to myself it seems to work but the transaction is pending (I don't know the name of the person I'm sending to). If this fails, is there a way to send the BTC without having to input this information. I'm UK based.