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Object documentationDRP Matrix

 

Data matrix that contains the various demands, stocks, and receipts of a location product.

 

The DRP matrix displays all DRP planning results per location product and period. Distribution requirements planning (DRP) needs these values to determine the net demand of the location product.

Note Note

If you are planning location products in the reorder-point-based planning mode, the DRP matrix does not display the DRP planning results for each period because reorder-point-based planning takes place statically and not on the basis of periods. For these location products, the DRP matrix also displays additional key figures. For more information, see Displaying Reorder-Point-Based Planning Results.

End of the note.

Structure

Each DRP matrix only ever contains data for one location product. (The location can also be a contract packager. For more information, see Integration of Contract Packagers in the SPP Planning Process). A DRP matrix contains rows and columns. The columns contain the periods that the system uses as a basis to plan. The rows contain the following planning key figures:

Projected Unserviceable Stock

For more information about how the stock of unserviceable products is projected, see Displaying and Editing the Results of Repair or Buy Planning in the Displaying Planning Results section.

Total Gross Demand

The total gross demand of a period is the total of the following key figures:

  • Corrected Forecast

    The corrected forecast is the result of the forecast and the overriding fixed demands. Overriding fixed demands are fixed demands that overwrite the forecast results.

  • Substitution Demand

    The substitution demand in the DRP matrix is comprised of the demands of the following replacement types:

    • Product supersession (1:1 and FFF classes)

      The system specifies this requirement under consideration of the supersession for a predecessor product or under consideration of form fit function classes for the leading or a non-leading product of a form fit function subgroup.

    • Substitution of Remanufactured Products

      If the supplier capacity for a remanufactured product no longer suffices, the system creates this demand for the successor product. In this case, the successor product is a new product that DRP uses for planning if your supplier cannot deliver enough of the remanufactured product.

    • Forwarding of excess from/to contract packager (CP)

      The system creates this demand to forward excess stocks for planning purposes. The system plans the forwarding of excess stocks both from alternative CPs to the corresponding master location and from the master location to the corresponding active CPs.

      For more information about CPs, see Contract Packager.

  • Fixed Demand (Non-Overriding)

    Non-overriding fixed demands are fixed demands that do not overwrite the forecast results. The non-overriding fixed demand in the DRP matrix is comprised of the following fixed demand types:

    For more information, see Fixed Demands and Receipts.

  • Planned and confirmed distribution demand

    Distribution demands are demands that occur during a stock transfer for the supplying location. Planned distribution demands for a parent location consist of the rounded net demands of its child locations. For each planned distribution receipt, the DRP matrix displays the individual distribution demands of the corresponding child locations. Confirmed distribution demands consist of stock transport orders that deployment and the inventory balancing service created. DRP also shows stock transport orders that have not yet been released.

  • Open customer demands

    DRP displays open customer demands according to your settings in Customizing. For more information, see the Implementation Guide (IMG) for Advanced Planning and Optimization under Start of the navigation path Supply Chain Planning Next navigation step Service Parts Planning (SPP) Next navigation step Basic Settings Next navigation step Make Settings for Customer Demand End of the navigation path.

  • Dependent demand

    Dependent demands can result as part of repair-or-buy planning or kit-to-stock planning.

    For more information, see Displaying and Editing the Results of Repair or Buy Planning and Displaying and Changing Results of Kit-to-Stock Planning.

  • Additional demand (BAdI)

    If you have implemented the BAdI /SAPAPO/PB_ADDITIONAL_QTYS and defined additional demand quantities in it, the system displays these additional demand quantities in this key figure. For more information, see Customizing for Advanced Planning and Optimization under Start of the navigation path Supply Chain Planning Next navigation step Service Parts Planning (SPP) Next navigation step Business Add-Ins (BAdIs) for Service Parts Planning (SPP) Next navigation step BAdIs for Distribution Requirements Planning (DRP) End of the navigation path.

Total Gross Receipt (Confirmed)

The confirmed total gross receipt of a period is the total of the following key figures:

  • Substitution receipt

    The substitution receipt in the DRP matrix is comprised of the receipts of the following replacement types:

    • Product supersession (1:1 and FFF classes)

    • Substitution of remanufactured products

    • Forwarding of excess from/to CP

  • Fixed receipts

  • Receipts from anticipated demand coverage

  • Confirmed distribution receipts from the BOD and frozen distribution receipts from suppliers

    Confirmed distribution receipts from the BOD arise from stock transport orders that were generated by deployment or inventory balancing but that have not yet been sent. DRP also shows stock transport orders that have not yet been released.

  • Stock in transit

    Stock in transit is stock that is either on the way from the supplier to the entry location or on the way between two locations within the BOD.

  • Fixed and non-fixed receipt of serviceable products that have been repaired and kits.

    For more information about receipts of serviceable products that have been repaired, see Displaying and Editing the Results of Repair or Buy Planning. For more information about receipts of kits, see Displaying and Changing Results of Kit-to-Stock Planning.

  • Additional receipt (BAdI)

    If you have implemented the BAdI /SAPAPO/PB_ADDITIONAL_QTYS and defined additional receipt quantities in it, the system displays these additional receipt quantities in this key figure.

Initial Warehouse Stock

The system only shows the initial warehouse stock if you choose the Show Initial Stock pushbutton. The initial warehouse stock is the stock that is available in your warehouse. This stock is reduced by a goods issue only.

Projected Stock and Supply Shortage

The projected stock or the supply shortage occurs period by period from the confirmed total gross receipt minus the total gross demand. In the Overdue column, the system also adds the existing stock to the confirmed total gross receipt. For the other period, the system adds the existing stock of the previous periods to the confirmed total gross receipt. If this interim result is less that the planned minimum safety stock and the system calculates net demands in the corresponding periods, the system calculates a net demand and adds it to the calculated interim result. If the result of this calculation is positive, the system writes the result in the Projected Stock row. If the result is negative, the system writes it in the Supply Shortage row.

Planned Minimum Safety Stock Level

DRP forms the minimum safety stock from the safety stock. For products with seasonal demand, the safety stock changes by the pre-season safety stock shift. The normal safety stock consists of the safety stock of the location and the percentage safety stock proportion of the parent location. For more information about safety stock determination, see Combined Planning of EOQ and SFT.

If you are using the repair-or-buy function, you can use additional safety stock for products that can be repaired. You see this stock in the Repair Safety Stock key figure. For more information, see Displaying the Results of Repair or Buy Planning.

Minimum Net Demand

If you specify a minimum net demand, DRP displays the minimum net demand value from the calculated unrounded net demand. In doing so, the system prevents DRP from possibly ordering a very large rounded quantity if demands are low. Until the net demand reaches the minimum net demand, the system does not take the net demand into account during planning. It can be useful to define a minimum demand (for example, 0.4 pieces) for slow-moving items. You can specify a minimum net demand for both the location product and its virtual child location in the location product master data on the SPP DRP tab page.

Unrounded Net Demand (Simple)

DRP does not take this key figure into account during planning. It is intended purely as information and is also only filled with values for entry locations.

The unrounded net demand (simple) is the net demand that has not yet been rounded at all and for which the system has not yet considered any supplier constraints. If the projected stock is less than the planned minimum safety stock, the system needs the value of the unrounded net demand (simple) to bring the projected stock back to the value of the planned minimum safety stock before rounding and applying stability rules. The system does not display the projected stock for the calculation of the unrounded net demand (simple) in the DRP matrix.

Rounded Net Demand (Unconstrained)

DRP does not take this key figure into account during planning. It is intended purely as information and is also only filled with values for entry locations.

The rounded net demand (unconstrained) shows the net demand of an entry location without taking into account any supplier constraints such as stability rules or supplier shutdowns. The system does not display the projected stock for the calculation of the rounded net demand (unconstrained) in the DRP matrix.

Unrounded Net Demand (Adapted)

If you round to days’ supply, DRP only fills this key figure within the horizon for fixed demands. If you do not round to days’ supply, DRP fills this key figure for the whole planning horizon. If the projected stock is less that the planned minimum safety stock, the system needs the value of the unrounded net demand (adapted) to bring the projected stock back to the value of the planned minimum safety stock.

Rounded Net Demand (Constrained)

The rounded net demand is the result of the unrounded net demand (adapted) to which DRP has applied the DRP rounding rules. According to these rules, the system rounds step by step. The rounding steps that the system performs depend on your settings in Customizing and whether the location of the location product is a child location or an entry location. In the DRP matrix, the system displays the results of the rounding steps that the system performed in Rounded Net Demand (Constrained). In doing so, DRP takes into account the results of the future BOD check as well as checking whether there is a supplier shutdown.

DRP then applies DRP stability rules to the rounded net demand (constrained).

Distr. Recpt from Supplier (Not Frozen)

DRP displays this key figure at entry location level only. It displays approved scheduling agreement releases that are not frozen and do not lie within the freeze horizon.

Dis. Rcpt fr. Suppl. (Unres.) by Shp. Date

DRP displays this key figure at entry location level only. It is intended purely for information and displays the scheduling agreement delivery schedule lines in the Frozen Distribution Receipts from Supplier and Rounded Net Demand (Unconstrained) key figures by shipping date.

Dis. Rcpt fr. Suppl. (Cnst.) by Shp. Date

DRP displays this key figure at entry location level only. It displays the scheduling agreement delivery schedule lines in the Frozen Distribution Receipts from Supplier and Rounded Net Demand (Unconstrained) key figures by shipping date.

Ordered/Released Qty. by Shipping Date

DRP displays this key figure at entry location level only. It displays the approved scheduling agreement releases from the supplier’s view.