Key Figures: Open to Buy 

In addition to updated actual figures, planned figures from flexible planning can also be included in the open-to-buy standard analysis.

Actual Figures

Opening Stock

This key figure is calculated as follows during execution of the standard analysis :

Opening stock = Opening stock of previous period + Actual receipts - Actual issues

The opening stock for the first planning period is calculated using what is known as stock initialization. Stock initialization is performed by a report which helps to determine and establish the opening stocks for a specific key date.

The planned opening stock is used as the initial stock at the start of planning. When the opening stock is calculated, all receipts and issues which have occurred from the start of planning up to the current period are added to the planned opening stock.

Issues/Receipts

For more information on how to calculate the key figures Receipts and Issues, refer to the section on changes involving stocks in Key Figures: Inventory Management.

Stock Adjustment: Inventory Difference

For more information on how to calculate the key figures for stock adjustment, see Key Figures: Inventory Management.

Open Order Stock

For more information on how to calculate this key figure, see Key Figures Calculated at Runtime.

Sales/Sales Deviation

For more information on how to calculate this key figure, see Key Figures: Sales and Distribution.

Revaluation at Retail

For more information on how to calculate this key figure, see Key Figures: Inventory Management.

Open Stock Transport Orders

Open order volume in stock transport orders.

This key figure refers to the supplying plant and with reference to the ordering plant. It is updated on the delivery date.

Planning Figures

Planned Opening Stock

The planned opening stock for each period corresponds to planned closing stock of the previous period. The so-called ‘stock initialization’ is used to determine the planned opening stock for the first planning period. The ‘stock initialization’ is a report which helps to determine and establish the opening stocks for a specific key date.

You can find additional information about setting stocks for Planning in the R/3 library documentation in PP Sales and Operations Planning under Mass Processing ® How to Set Opening Stock Levels with Mass Processing).

Planned Stock

Planned closing stock per period.

Initial Purchasing Quota as %

Percentage of the seasonal budget already released for purchasing. The rest of the budget is reserved for later purchases.

The seasonal budget (purchasing budget) is calculated from the following elements:

This budget is subdivided into a budget already released and a reserve budget. This subdivision is controlled by the initial purchasing quota. On the basis of the purchasing or seasonal budget and the budget already released, the key figure ‘open-to-buy’ is calculated and expressed in terms of two values (see below). In the standard analysis, the initial purchasing quota is required to calculate the OTB for the budget already released.

Open-To-Buy

This key figure represents the main scope of the standard analysis of the same name. It tells you whether it is still possible to make further purchases or whether the stipulated purchasing volume has already been reached for the respective period. The system also calculates the budget still available as the difference between the planned budget and the expenditure that has already been reached.

The entire purchasing budget is made up from the partial budgets of more detailed planning levels. It is therefore possible to specify, for example, which budget is available for each merchandise category, price band, store, and so on.

The total budget defined for a planning level is split into a budget that has already been released and a reserve budget.

The budget already released is available to buyers for future periods, while the reserve budget is withheld to enable the organization to react to unforeseen trends in the short term.

Calculating Budgets per Period

Seasonal budget = Planned closing stock - Planned opening stock + Planned sales

+ Planned markdowns + Planned inventory differences

Pre-order budget = Seasonal budget * Pre-order quota

Reserve budget = Seasonal budget - Pre-order budget

 

Calculating the Actual Closing Stock per Period

Actual closing stock = Actual opening stock + Actual receipts - Actual issues

You can define deviating formulas for sales projections using a customer exit.

The opening stock for the first planning column is determined by mass processing (stock initialization).

Extrapolating the Sales in the Current Period

Extrapolated sales = Actual sales * (Number of sales days / Number of past sales days)

The number of sales days is determined for each site according to the assigned factory calendar.

Calculating OTB per Period

The key figure ‘open-to-buy’ is calculated for the budget already released and for the seasonal budget that is still available for purchases, and is displayed in the standard analyses. The key figure ‘open-to-buy’ is always zero for a period in the past.

OTB for Seasonal Budget

  1. Past period: OTB = 0
  2. Current period:
  3. OTB =

    (Planned closing stock - Actual opening stock

     

    + Planned sales + Planned inventory differences

    + Planned markdowns)

     

    - Actual open purchase orders

     

    - Actual open stock transfer orders (receiving site)

     

    + Actual open stock transfer orders (supplying site)

     

    + (Extrapolated sales at end of period - Planned sales)

     

    + Maximum (actual inventory differences - Planned inventory differences, 0)

     

    + Maximum (actual markdowns - Planned markdowns, 0)

     

    + (Actual goods issues - Actual sales - Actual price reduction - Actual inventory differences

    - Actual markdowns)

     

    - Actual goods receipts

     

  4. Future period:

OTB =

(Planned closing stock - Planned opening stock

 

+ Planned sales + Planned inventory differences + Planned markdowns

 

- Actual open purchase orders

 

- Actual open stock transfer orders (receiving site)

 

+ Actual open stock transfer orders (supplying site)

 

OTB for Budget Already Released

  1. Past period: OTB = 0
  2. Current period:
  3. OTB =

    (Planned closing stock - Actual opening stock

     

    + Planned sales + Planned inventory differences

    + Planned markdowns) * Initial purchasing quota

     

    - Actual open purchase orders

     

    - Actual open stock transfer orders (receiving site)

     

    + Actual open stock transfer orders (supplying site)

     

    + (Extrapolated sales at end of period - Planned sales)

     

    + Maximum (actual inventory differences - Planned inventory differences, 0)

     

    + Maximum (actual markdowns - Planned markdowns, 0)

     

    + (Actual goods issues - Actual sales - Actual price reduction - Actual inventory differences

    - Actual markdowns)

     

    - Actual goods receipts

     

  4. Future period:

OTB =

(Planned closing stock - Planned opening stock

 

+ Planned sales + Planned inventory differences + Planned markdowns)* Initial purchasing quota

 

- Actual open purchase orders

 

- Actual open stock transfer orders (receiving site)

 

+ Actual open stock transfer orders (supplying site)

The key figure OTB is calculated from planned and actual figures during the standard analysis.

.

You can find further information about open-to-buy in the R/3 Retail Documentation in the section on the planning system under Open-To-Buy (OTB)

See also:

How Key Figures Are Calculated