• "Operation is not valid due to the current state of the object" when adding additional SID to edsva-MsExch-SharedMailboxUsers

    Hi, I am trying to create a workflow to grant users FullAccess to existing shared mailboxes (exchange on-prem) by adding SID to the attribute edsva-MsExch-SharedMailboxUsers but it keeps returning error "Operation is not valid due to the current state of…