It can take up to ten minutes for your transaction appear in your Sling Wallet.
Your Sling Wallet is a Solana wallet, and as such can only accept incoming transfers using the Solana blockchain. If you accidentally or mistakenly attempt to transfer USDP to your Sling Wallet address on another blockchain you will likely lose your funds.
Please confirm that your transfer will be completed with Solana and to the correct address before initiating a transfer. Because blockchains are immutable ledgers -- this means they can't be changed retroactively -- once a transfer is made to an incorrect address or an address on the wrong blockchain there isn't anything we or anyone else can do to help you recover those funds.