You can buy if the fund has restrictions. However, investors can only buy the amount within the scope of purchase restriction. Generally speaking, the subscription limit of the fund is the subscription amount of each trading day. If investors want to buy more, they can continue to buy through daily fixed investment. Funds that are restricted in purchase do not mean certain quality.
The general fund company will announce the fund purchase restriction. The reason for the purchase restriction is generally to control the fund size or to protect the interests of investors already held. Some funds must control their scale to get better returns.