A Ripple (XRP) Destination Tag/Memo is a mandatory field used by Roobet and other platforms to identify who should be receiving XRP sent to their address.
We require a destination tag on all deposits, and if you are missing the tag when you place your depo your funds will unfortunately be lost. Additionally, we highly recommend that you double check if your wallet provider requires a tag/memo before withdrawing XRP.
If your wallet provider requires a memo/tag, you must include it in your transaction or your funds may be lost.