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Since this event is consistently called before planned documents are displayed at the mobile device, you may also use the event to display confirmation messages at the mobile device when such documents are opened.

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    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Order Locking", 'OnLockOrder_OnBeforeLockOrder', '', true, true)]
    local procedure OnLockOrder_OnBeforeLockOrder(_MobDocumentQueue: Record "MOB Document Queue"; var _RequestValues: Record "MOB NS Request Element"; var _IsHandled: Boolean)
    begin
        // Implement custom business logic here        
    end;

Example 1

    // [Example 01]  Your own custom locking implementation: Suspend all order locking for Pick lines
    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Order Locking", 'OnLockOrder_OnBeforeLockOrder', '', true, true)]
    local procedure My01OnLockOrder_OnBeforeLockOrder(_MobDocumentQueue: Record "MOB Document Queue"; var _RequestValues: Record "MOB NS Request Element"; var _IsHandled: Boolean)
    begin
        if _RequestValues.GetValue('Type') = 'Pick' then begin
            _IsHandled := true;
            exit;
        end;
    end;

Example 2

    // [Example 02]  Confirmation message when attempting specific lock type
    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Order Locking", 'OnLockOrder_OnBeforeLockOrder', '', true, true)]
    local procedure My02OnLockOrder_OnBeforeLockOrder(_MobDocumentQueue: Record "MOB Document Queue"; var _RequestValues: Record "MOB NS Request Element"; var _IsHandled: Boolean)
    var
        MobToolbox: Codeunit "MOB Toolbox";
        XmlRequestDoc: XmlDocument;
    begin
        if _RequestValues.GetValue('Type') = 'Pick' then begin
            _MobDocumentQueue.LoadXMLRequestDoc(XmlRequestDoc);
            MobToolbox.ErrorIfNotConfirm('This is a confirmation message OnGetPickOrderLines...', XmlRequestDoc);
        end;
    end;

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