If the Crypto Assets are not supported or available on the App, you will not be permitted to transfer them. However, if you proceed to send Crypto into a Crypto Asset Wallet that does not support that particular asset then you take all responsibility for all the losses that might occur by doing so.
In any case, sending unsupported tokens to the Wealth App does not mean your money will be lost forever. If we'll support that type of tokens in the future, you may see those coins in the wallet. You can see available assets here.