After re-trusteeship, if the fund share balance managed by the investor in the sales organization (place) is lower than the minimum share, it shall be confirmed that the re-trusteeship is unsuccessful. If the investor's fund share balance is lower than the minimum share, he must apply for a one-time transfer when transferring custody. If the number of applications is not all, the registration transfer department confirms that the transfer is unsuccessful. Fund conversion refers to a business model in which investors can directly convert their fund shares into those of other open-end funds managed by a company after holding any open-end fund issued by the company, without redeeming the fund shares they hold before purchasing the target fund. Fund conversion can only be converted into fund shares managed by the same fund company, registered and deposited by the same registrant and under the same fund account, and can only be carried out in the same sales organization. Transfer custody refers to the business that the same investor transfers the fund shares entrusted at a sales outlet to another sales outlet (it can be a different sales organization, but it must be an institution that transfers the funds on a commission basis).