It is not allowed unless there are special circumstances. If you bought a fund with someone else's card and now want to transfer it to your own card, you can't transfer the fund at will unless it is due to inheritance, notarization and judicial transfer. Fund share is money. Imagine, if you can transfer it casually, wouldn't it be a mess?

But if it is a transfer between cards with the same name, it is also possible. Because the card may be lost, you need to go to the channel where you buy the fund.