How Inventory is Calculated in Navision 2016

Today we will see terms used for Inventory and how Inventory is calculated in Navision.



You can find details of Inventory on Item Card itself. Also how much Inventory is available or required at different area in ERP.



If you open Item Availability by Location you will find in more details. When you drilldown you can find in more details from where these figure comes from.

Scheduled Receipts:

Here all the entries from below area is included:

a) Purchase Orders

b) Transfer Orders

c) Firm Planned Production Order

d) Release Production Order

e) Assembly Orders

How Navision calculates?

AvailType::"Scheduled Order Receipt":
BEGIN
InsertEntry(DATABASE::"Purchase Line",Item.FIELDNO("Qty. on Purch. Order"),PurchLine.TABLECAPTION,Item."Qty. on Purch. Order");
InsertEntry(DATABASE::"Prod. Order Line",Item.FIELDNO("FP Order Receipt (Qty.)"),STRSUBSTNO(Text002,ProdOrderLine.TABLECAPTION),Item."FP Order Receipt (Qty.)");
InsertEntry(DATABASE::"Prod. Order Line",Item.FIELDNO("Rel. Order Receipt (Qty.)"),STRSUBSTNO(Text003,ProdOrderLine.TABLECAPTION),Item."Rel. Order Receipt (Qty.)");
InsertEntry(DATABASE::"Transfer Line",Item.FIELDNO("Qty. in Transit"),Item.FIELDCAPTION("Qty. in Transit"),Item."Qty. in Transit");
InsertEntry(DATABASE::"Transfer Line",Item.FIELDNO("Trans. Ord. Receipt (Qty.)"),Item.FIELDCAPTION("Trans. Ord. Receipt (Qty.)"),Item."Trans. Ord. Receipt (Qty.)");
InsertEntry(DATABASE::"Sales Line",0,SalesLine.TABLECAPTION,Item."Qty. on Sales Return");
InsertEntry(DATABASE::"Assembly Header",Item.FIELDNO("Qty. on Assembly Order"),AssemblyHeader.TABLECAPTION,Item."Qty. on Assembly Order");
END;

Planned Receipts:

Here all the entries from below area is included:

a) Planned Production Order

b) Planning Worksheet

c) Requisition Worksheet

How Navision calculates?

AvailType::"Planned Order Receipt":
BEGIN
InsertEntry(DATABASE::"Requisition Line",Item.FIELDNO("Purch. Req. Receipt (Qty.)"),ReqLine.TABLECAPTION,Item."Purch. Req. Receipt (Qty.)");
InsertEntry(DATABASE::"Prod. Order Line",Item.FIELDNO("Planned Order Receipt (Qty.)"),STRSUBSTNO(Text000,ProdOrderLine.TABLECAPTION),Item."Planned Order Receipt (Qty.)");
END;

Gross Requirement:

Here all the entries from below area is included:

a) Sales Order

b) Transfer Order

c) Firm Planned Production Order Components

d) Released Production Order Components

e) Job Planning Lines

f) Service Orders

g) Assembly Orders Components

How Navision calculates?

AvailType::"Gross Requirement":
BEGIN
InsertEntry(DATABASE::"Sales Line",Item.FIELDNO("Qty. on Sales Order"),SalesLine.TABLECAPTION,Item."Qty. on Sales Order");
InsertEntry(DATABASE::"Service Line",Item.FIELDNO("Qty. on Service Order"),ServLine.TABLECAPTION,Item."Qty. on Service Order");
InsertEntry(DATABASE::"Job Planning Line",Item.FIELDNO("Qty. on Job Order"),JobPlanningLine.TABLECAPTION,Item."Qty. on Job Order");
InsertEntry(DATABASE::"Prod. Order Component",Item.FIELDNO("Scheduled Need (Qty.)"),ProdOrderComp.TABLECAPTION,Item."Scheduled Need (Qty.)");
InsertEntry(DATABASE::"Planning Component",Item.FIELDNO("Planning Issues (Qty.)"),PlanningComponent.TABLECAPTION,Item."Planning Issues (Qty.)");
InsertEntry(DATABASE::"Transfer Line",Item.FIELDNO("Trans. Ord. Shipment (Qty.)"),Item.FIELDCAPTION("Trans. Ord. Shipment (Qty.)"),Item."Trans. Ord. Shipment (Qty.)");
InsertEntry(DATABASE::"Purchase Line",0,PurchLine.TABLECAPTION,Item."Qty. on Purch. Return");
InsertEntry(DATABASE::"Assembly Line",Item.FIELDNO("Qty. on Asm. Component"),AssemblyLine.TABLECAPTION,Item."Qty. on Asm. Component");
END;

Planned Order Releases:

How Navision calculates?

AvailType::"Planned Order Release":
BEGIN
InsertEntry(DATABASE::"Requisition Line",Item.FIELDNO("Purch. Req. Release (Qty.)"),ReqLine.TABLECAPTION,Item."Purch. Req. Release (Qty.)");
InsertEntry(DATABASE::"Prod. Order Line",Item.FIELDNO("Planned Order Release (Qty.)"),STRSUBSTNO(Text001,ProdOrderLine.TABLECAPTION),Item."Planned Order Release (Qty.)");
InsertEntry(DATABASE::"Requisition Line",Item.FIELDNO("Planning Release (Qty.)"),ReqLine.TABLECAPTION,Item."Planning Release (Qty.)");
END;

Finally we can calculate Projected Available Inventory as below formula:

Inventory + Scheduled Receipts + Planned Receipts - Gross Requirement

thats all for today, will come with more information in my upcomming posts.