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Use this event to

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Description

Headers affect which Orders are displayed. This event "handles" each filter.

With this event you can perform basic record filtering of Orders.

If you have complex conditions, consider OnGetReceiveOrders_OnInclude... instead. 

Learn about Basic vs. Complex filtering

Template

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Receive", 'OnGetReceiveOrders_OnSetFilterPurchaseOrder', '', true, true)]
    local procedure OnGetReceiveOrders_OnSetFilterPurchaseOrder(_HeaderFilter: Record "MOB NS Request Element"; var _PurchHeader: Record "Purchase Header"; var _PurchLine: Record "Purchase Line"; var _IsHandled: Boolean)
    begin
    end;

Example 1: Modify standard header filter

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Receive", 'OnGetReceiveOrders_OnSetFilterPurchaseOrder', '', true, true)]
    local procedure OnGetReceiveOrders MyOnGetReceiveOrders_OnSetFilterPurchaseOrder(_HeaderFilter: Record "MOB NS Request Element"; var _PurchHeader: Record "Purchase Header"; var _PurchLine: Record "Purchase Line"; var _IsHandled: Boolean)
    var
    PurchaseHeader        PurchaseHeader: Record "Purchase Header";
    begin
            // [Scenario] Validate the standard "Purchase Order" filter,
            // [Scenario] by checking the order is Open. 
            // [Scenario] If not, abort process and force user to change filter with an error message
        // [Scenario] If not Do not handle the filter, abort process and force user to change filter. so standard filter works are normal

          if _HeaderFilter.Name = 'PurchaseOrderNumber' then
                    if PurchaseHeader.Get(PurchaseHeader."Document Type"::"Order", _HeaderFilter."Value") and (PurchaseHeader.Status <> PurchaseHeader.Status::Released) then
            Error                Error('Purchase Order %1 is not released', PurchaseHeader."No."); // We use "error" since filter a single document no. (Error is not recommended for common filtering)
    // _IsHandled := // No point in handling the filter or not, as Error stops the entire proces if needed
    end;

Example 2: Add custom filters to Standard headers

You want to add an additional filter to a existing header. 

• See Case: Filter Inventory Movements of Asmbl. Orders for specific Sales Order

Example 3: Handle custom header filter

• See 

...

• OnGetReferenceData_OnAfterAddHeaderField

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