Vault Admins can create, refresh, and delete sandboxes through the Admin UI. However, Vault admins encounter an error: This Vault's FTP Server is used as the source for XXX. Please ask your administrator to remove the link when refreshing a sandbox Vault.
The FTP server of the Vault that is expected to be refreshed is linked to another Vault which blocks the refreshing.
Open a support ticket to the support team to re-point the FTP server to the specific Vault ID itself that in the error message.
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