Setting Up a Kanban Size Calculation Definition

Identify the actual name of the function. It must follow standard ANSI C naming conventions (for example, no space between words). Select the business function for this calculation method. The system verifies that the business function exists.

Specify the usage level of the Periods in MRP Window parameter in the Kanban Size Calculation program (R30450). Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban using a particular size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

This parameter defines the number of time buckets that the system uses to calculate the demand for kanban size.

The system counts the number of time buckets from a defined start date to arrive at the end of a time horizon. You enter the start date in a processing option for the Kanban Size Calculation program (R30450). If you do not specify a date, the system uses the material requirements planning (MRP) generation date as the start date.

It is recommended that you set the MRP Planning Horizon periods in the MRP/MPS Requirements Planning program (R3482) to the same settings as the Periods in MRP Window in the Kanban Size Calculation Parameter Definition program (P3018).

Specify the usage level of the Container Size parameter in the Kanban Size Calculation program (R30450). This parameter defines the kanban movement quantity. For example, if the kanban is a physical container, the container size identifies how much the container can hold.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Scan Delta Days parameter in the Kanban Size Calculation program (R30450). This parameter defines the number of days between a kanban card checkout action and the day on which the supplier receives the notification of the checkout. For example, if a kanban card is scanned at 9:00 am one day, and the supplier receives an EDI 862 transaction the next day through a nightly batch program, the scan delta days parameter would be 1.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Leadtime Delivery (Days) parameter in the Kanban Size Calculation program (R30450). This parameter is the time duration between when the goods leave the supplier and when they arrive at the work center. Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Vendor Split Percent parameter in the Kanban Size Calculation program (R30450).

You specify the vendor in the kanban master record. When a feeder work center is the source of the kanban, then this number indicates the fraction of demand that the particular work center satisfies. The Kanban Size Calculation program multiplies this value by the calculated demand to determine the demand per supplier.

For a kanban master record with the same supplying branch, consuming branch, supplying location, consuming location, and item number, the vendor split percentage is the same for all of the records. The first record's vendor split percentage is applied to all of the records. You can have different vendors for different kanban IDs with the same supplying branch, consuming branch, supplying location, consuming location, and item number combinations. The first record's vendor split percentage should be the highest possible, as set up in the Kanban Size Calculation Parameter Definition program. Thus, subsequent records are covered even if you have set up lower vendor split percentages in the Kanban Size Calculation Parameter Definition program.

Calculation-specific parameters have values that apply to all kanbans that uses a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban using a particular size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

This parameter is the percent of demand to which a particular vendor caters.

Specify the usage level of the Standard Pack Size parameter in the Kanban Size Calculation program (R30450). This parameter is the standard shipment size for an item coming from a supplier. When you specify this value, the Kanban Size Calculation program rounds up the calculated kanban size to the closest multiple of this number.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Safety Stock parameter in the Kanban Size Calculation program (R30450). This parameter is the quantity kept on hand to cover fluctuations in demand. The Kanban Size Calculation program adds this value to the calculated demand.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Demand Split Percent parameter in the Kanban Size Calculation program (R30450).

This parameter defines the demand for a kanban item at its consuming location, expressed as a percentage of the total demand for the same item at all locations in the branch/plant over a period of time.

When the consuming location on the kanban is the only location in which the item is used, then the demand split percent is 100 percent.

When multiple consuming locations exist, this parameter identifies the percent of demand from one location. For instance, 40 percent of the demand is planned by this kanban, and 60 percent of the demand is planned by another kanban.

The Kanban Size Calculation program multiplies this value by the demand for the item to determine the demand at the consuming location. For a kanban master record with the same supplying branch, consuming branch, supplying location, consuming location, and item number, the demand split percentage is the same for all the records. The first record's demand split percentage is applied to all of the records.

You can have different demand split percentages for different kanban IDs for the same supplying branch, consuming branch, supplying location, consuming location, and item number. The first record's demand split percentage should be the highest possible, as set up in the Kanban Size Calculation Parameter Definition program. Thus, subsequent records with the same supplying branch, consuming branch, supplying location, consuming location, and item number are covered, even if you have set up lower demand split percentages in the Kanban Size Calculation Parameter Definition program.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Minimum Quantity Boundary parameter in the Kanban Size Calculation program (R30450). This parameter defines the minimum quantity that can be ordered by a single kanban trigger. When the Kanban Size Calculation program calculates the kanban size, and the calculated size is less than the minimum quantity, then the system uses the minimum quantity as the size of the kanban.

The system assumes the kanban is fixed-size, when the minimum quantity for an item is same as the maximum quantity defined for the item. The Kanban Size Calculation program (R30450) calculates the number of kanbans required based on the fixed-size.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban using a particular size calculation method. Values are:

0: Parameter is not used.

1:Parameter is kanban-specific.

2: Parameter is calculation-specific.

Indicate the level of usage of the Maximum Quantity Boundary parameter in the Kanban Size Calculation program. This parameter defines the maximum quantity that a single kanban trigger can order. When the Kanban Size Calculation program calculates the kanban size, and the calculated size is greater than the maximum quantity, then the software uses the maximum quantity as the size of the kanban.

The system assumes the kanban is fixed-size, when the maximum quantity for an item is same as the minimum quantity defined for the item. The Kanban Size Calculation program (R30450) calculates the number of kanbans required based on the fixed-size.

Calculation specific parameters have values that apply to all kanbans using a particular size calculation method. Kanban-specific parameters have values that apply to a specific kanban using a particular size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Minimum Number of Cards parameter in the Kanban Size Calculation program (R30450). This parameter defines the minimum number of kanban cards in the cycle. Each kanban card represents a container. Each kanban should have at least one card. For fixed container size calculations, the Kanban Size Calculation program calculates the number of cards, and, if the calculated value is less than the specified minimum number of cards, the system uses the minimum number of cards.

For calculations that use a fixed number of cards, the minimum number of cards should equal the maximum number of cards.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

Specify the usage level of the Maximum Number of Cards parameter in the Kanban Size Calculation program (R30450). This parameter defines the maximum number of cards in the cycle. Each kanban card represents a container. Each kanban should have at least one card. For fixed container size calculations, the Kanban Size Calculation program calculates the number of cards, and, if the number of cards that the program calculates exceeds the maximum number of cards, then the system uses the value that represents the maximum number of cards. For calculations that use a fixed number of cards, the minimum number of cards should equal the maximum number of cards.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

(Optional) Specify the usage level of Custom Parameter 1 in the Kanban Size Calculation program (R30450). This custom parameter is user-defined. To use this parameter, you must modify or create the supporting business function.

Calculation-specific parameters have values that apply to all kanbans that use a specific size calculation method. Kanban-specific parameters have values that apply to a specific kanban that uses a specific size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.

(Optional) A value that specifies the usage level of the Days Built Per Period parameter in the Kanban Size Calculation program (R30450). Calculation-specific parameters have values that apply to all kanbans using a particular size calculation method. Kanban-specific parameters have values that apply to a specific kanban using a particular size calculation method. Values are:

0: Parameter is not used.

1: Parameter is kanban-specific.

2: Parameter is calculation-specific.