T+2 days (very few have T+ 1).

Before 3pm on T+2, select the option of "merger and split" and enter the parent fund code.

On T+3, you can see that the parent fund in the account disappears and becomes two sub-funds of Class A and Class B, and then you can sell it.

Purchase, merger and redemption

Buy a and b shares on t day

T+ 1 merged into the parent fund.

T+2 days redeemable