Bill of Material (tibom1110m000)

Use this session to define a bill of material (BOM) for manufactured items, purchased items, product items, or tools.

Performance aspects

The settings in this session could affect system performance and database growth. For more information, refer to the following topics:

  • Number of BOM levels
  • Floor stock
  • Phantoms
  • Material for multiple operations
Note: This session is only applicable if the Job Shop by Site parameter in the Implemented Software Components (tccom0100s000) session is set to Inactive.

Field Information

Main Item

The for which you want to display or maintain the bill of material.

The first segment is used for the project code, and the second is used for the item code.

Note: 

The non-configurable items can only be the:

  • Main item

  • Sub item

Site

The site to which the bill of material applies.

Note:  Multisite functionality must be active, to use this field.
.
Engineering Item Revision

revision

BOM Qty

BOM quantity

You must determine the BOM quantity in the Item - Production (tiipd0101m000) session.

The BOM quantity enables you to specify very small item quantities as bill of material components. You might want to do this, for example, if you are creating a bill of material for a chemical dilution.

Example

You want to make a millionth part salt dilution. If the dilution's inventory unit is liters, you can specify a BOM for one liter, and a component item of one milligram of salt. However, one milligram could be too small to be measured accurately. It is more practical to specify a bill of material for a BOM quantity of 1000 liters, so the component item will be one gram of salt.

Phantom

If this check box is selected, the component item is defined as a phantom in the Item - Production (tiipd0101m000) session. You can use phantom items to record technical information about the product structure or to carry out standard cost calculations.

Note: 
  • If the component item is a phantom, you cannot define alternative materials.
  • If the Main Item is a phantom, a check mark is displayed on the header and derived from the Item - Production (tiipd0101m000) session.
  • If the Item is a phantom, the check box on the BOM line is selected.

Performance aspects

The setting of this field could affect system performance and database growth. For more information, refer to Phantoms.

Position

The component's position number.

By default, LN shows the last position number used, plus 10. This procedure provides the sequence 10, 20, 30, and so on. The numbering of positions is unrestricted. For best results, you must use the default values so you can use intermediate numbers to insert components.

The maximum position number of a component item is 9999.

Sequence Number

The BOM sequence number is a subdivision of the component item's BOM position number.

  • If you create orders for a manufactured item and a BOM line has more than one sequence number, LN uses the sequence number that is currently valid.
  • If multiple sequence numbers are valid, only the material with the lowest sequence number is taken into account.
Item

The component item that is part of the manufactured item.

The components must be items of the Purchased, Manufactured, or Product item type. The component must be defined in the Items (tcibd0501m000) session.

Note: 

If the main item is of the item type Tool, components with the Tool type are allowed.

For more information on procuring purchased configurable items, refer to:

  • Product variants - Purchased configurable items
General
Effective Change Order

The change order that defines the effective date of the BOM line.

Expiry Change Order

The change order that defines the expiry date of the BOM line.

Effective Date

effective date

Expiry Date

The date the bill of material (BOM) is no longer valid.

First/Last Allowed Order Date

The value of the First Allowed Order Date field in the Items - Ordering (tcibd2100m000) session.

Quantities
Net Quantity

The amount of a component item used in the manufactured item.

To calculate this amount, multiply the number of units by the value in the Length field and the value in the Width field. For example, if you specify ten units of a component that is 2 cm long and 3 cm wide, the net quantity is 60 (10*2*3). If the width is not specified, the net quantity is 20.

Note: If a negative quantity is shown, the production of a manufactured item results in a by-product. This by-product is entered in the bill of material with a negative quantity, which is used to calculate the gross material requirement.

Quantity-independent lines

If the BOM lines are quantity independent, a zero is displayed in this field.

Scrap (%)

Recording a scrap factor prevents shortages in production. The scrap factor is expressed as a percentage loss.

A scrap factor of 5% means that LN will allocate 5% more of a component for a production order (gross material requirement).

Scrap is an extra loss in addition to the loss caused by the yield being less than 100%.

If you generate the BOM from an engineering BOM, the scrap factor and scrap quantity values will also be copied. However, these values will only be copied if the sequence number is the only thing changed, for example, wheel 10/1 to wheel 10/2. If there is a new item on the BOM line, for example, wheel to spare wheel, the scrap data will not be copied. In this case, the scrap quantity and scrap factor will be zero (0).

Scrap Quantity

scrap

The quantity of material that will be lost during production. The quantity is a fixed quantity that is independent to the quantity produced. Recording a scrap quantity prevents shortages in production.

Scrap is an extra loss in addition to the loss caused by the yield being less than 100%.

If you generate the BOM from an engineering BOM, the scrap factor and scrap quantity values will also be copied. However, these values will only be copied if the sequence number is the only thing changed, for example, wheel 10/1 to wheel 10/2.

If a new item exist on the BOM line, for example, wheel to spare wheel, the scrap data will not be copied, In this case scrap quantity and scrap factor will be 0.

Length

This field can be used, together with the Width field and number of units, to calculate the net quantity.

The net quantity is the Length field multiplied by the number of units and multiplied by the Width field, if applicable.

In the Print Production Order Documents (tisfc0408m000) session, you can only print a sawing list if you have entered the Length field for the given component. If you have entered both the Length field and the Width field, you can print a cutting list.

Width

This field can be used, together with the Length field and number of units, to calculate the net quantity.

The net quantity is the Length field multiplied by the number of units and multiplied by the Width field, if applicable.

If you have entered both the Length field and the Width field, you can print a cutting list in the Print Production Order Documents (tisfc0408m000) session.

Size Unit

The unit of measurement used.

Number of Units

The number of times that the required quantity of the material, specified in the Length field and/or the Width field, appears in the product.

Supply
Operation

The operation for which operation the material of the BOM line is issued to the job shop.

  • If you enter zero (0), you can use the BOM Line - Material-Routing Relationships (tibom0140m000) session to determine on which operation the material is issued.
  • If you enter a value other than zero (0), for example, 10, the material is issued at operation 10. This operation applies to all routings that are defined for the manufactured item. If the operation does not exist for the manufactured item's routing(s), the BOM line material is issued at the first operation of the routing.
Note: To avoid entering the code of a nonexistent operation, you are advised use the zoom function for this field and select an operation from the Routing Operations (tirou1102m000) session.

Performance aspects

The setting of this field could affect system performance and database growth. For more information, refer to Material for multiple operations.

Material-Routing Relations

If this check box is selected, material-routing relationships are present for the BOM component.

Warehouse

The warehouse where the component is stored and where the allocation for a production order is made.

Note: If the component is a phantom, and you select the Inherit Warehouse if Parent Item is a Phantom check box, LN allocates the requirement for the component in the warehouse of the component's parent item.
WMS Controlled

If this check box is selected, you defined in the Warehouses (tcmcs0503m000) session that an integration with a Warehouse Management System (WMS) exists. The value of the Lot Selection field in this session must be the same as in the used WMS.

Lot Selection

This field is applicable for lot-controlled items. The values Any, Same, or Specific regard the special conditions for the delivery of lot items on order lines. The values also determine the way lot numbers are assigned.

Use Phantom Inventory

If this check box is selected, LN checks if any phantom inventory is available.

If the phantom item is available in inventory, and the quantity is sufficient, this inventory is used as component in the production order.

If no phantom inventory is available, or if the quantity is insufficient, the inventory is not used. LN treats the component as a normal phantom item, so the phantom is exploded for the total quantity.

Note: The phantom stock is always ignored during planning.

Inherit Warehouse if Parent Item is a Phantom

Determines on which warehouse LN allocates the requirements for this component and from which warehouse LN issues the component if the component is a phantom.

If this check box is cleared, LN plans the material issue on the warehouse of the phantom item, regardless of whether the item is a phantom item or not. You define this warehouse in the Warehouse field in the Bill of Material (tibom1110m000) session.

If this check box is selected, and this component is a phantom item, LN plans the material issue on the warehouse of the parent item of the phantom item.

Alternatives Present

If this check box is selected, one or more alternative materials are present in the Use Up and Alternative Materials (tibom0150m000) session.

Note: 
  • You cannot modify the setting of this check box.
  • To view or maintain alternative materials, on the appropriate menu, click Use Up and Alternative Materials.

Use Up Materials Present

If this check box is selected, a use-up material is present in the Use Up and Alternative Materials (tibom0150m000) session.

You cannot modify the setting of this check box.

To view or maintain use-up materials, on the appropriate menu, click Use Up and Alternative Materials.

Allow Multiple Items

If this check box is selected, LN can distribute the net quantity of the material over multiple items. For example, the net quantity can be divided over the use-up material and the standard material or over the standard material and one or more alternative materials. If this check box is cleared, LN issues only a single item for this BOM line for one production order.

For examples, refer to Searching for alternative materials.

Inherit Demand Peg

If a production order is transferred from Enterprise Planning to Job Shop Control , the order can have a demand peg.

Note: A specification is generated for the peg.

You can use this field to determine whether the material must have this demand peg as well.

Miscellaneous
Order Lead Time

order lead time

You can determine the order lead time by clicking Update Order Lead Time in the Item - Production (tiipd0101m000) details session.

Specify Material Offset

If this check box is selected, you can specify the lead-time offset.

Lead Time Offset

The lead-time offset. LN uses the lead-time offset in capable-to-promise calculations. The date that a component must be available is calculated by subtracting the lead-time offset from the requirement date of the end item.

Note: You can only type the lead-time offset if the Specify Material Offset check box is selected.
Lead Time Offset Unit

Select Hours or Days as the time unit in which you want to express the lead-time offset.

Actual Material Offset

If the Specify Material Offset check box is selected, the actual offset is equal to the number of hours or days specified in the material offset field. If the Specify Material Offset check box is cleared, the actual offset is equal to the Order Lead Time.

Order Yield

The yield that is used in calculations for aggregate planning.

When LN plans material requirements by using a fixed lead time, LN uses the Order Yield field, rather than routing data. This process is carried out in the Order Planning module.

The value that you type in this field must be an estimation of the yield for all operations in the item routing. For example:

  • Yield on operation 10: 90%
  • Yield on operation 20: 80%
  • Yield on operation 30: 90%

In this case, the value that you must type in the Order Yield field is .90 * .80 * .90 = 65%

Default value

100

Setup Scrap

The scrap that is used in calculations for aggregate planning.

When LN plans material requirements by using a fixed lead time, LN uses the Setup Scrap field, rather than routing data. The planning process is carried out in the Order Planning module.

The value that you type in this field must be an estimation of the scrap for all operations in the item routing.

Default value

0

Customer Furnished Material

If this check box is selected, the material is a customer furnished material.

Note: Only visible when the Customer Furnished Materials parameter are selected in the Implemented Software Components (tccom0100s000) session.

Contains Customer Furnished Material

If this check box is selected, the end-item is an item that is built using one or more customer furnished material.

Exceptions Present

If this check box is selected, this BOM line has exceptions linked to it. Exceptions are part of the unit effectivity concept.

Standard Configuration

If this check box is selected, the BOM line is part of an item’s standard configuration. The costs for the BOM line are included in the standard cost. If the Standard Configuration check box is cleared, the BOM line is not part of an item’s standard configuration. The costs for the BOM line are not included in the standard cost.

The Standard Configuration check box in combination with the setting of the Valid check box in the Exceptions (tcuef0105m000) session indicates whether an BOM line is used for a specific effectivity unit.

  • If the Standard Configuration check box is selected, and the Valid check box is cleared for an exception linked to the BOM line, the BOM line will be omitted for a specific effectivity unit or requirement.
  • If the Standard Configuration check box is cleared, and the Valid check box is selected for an exception linked to the BOM line, the BOM line will be added for a specific effectivity unit or requirement.
Note: If the BOM line has exceptions attached, but you do not want to use the exceptions, for example, for selling spare parts, or for an end item which is not unit-effective, then you can clear this check box.

Supplied by Subcontractor

If you subcontract one or more operations, or an item's entire production process, you can choose whether or not to send material to the subcontractor to use for the subcontracted item.

If this check box is selected, the material is not sent to the subcontractor, but it is supplied by the subcontractor. Therefore, the material's planning and costing is not taken into account.

If this check box is cleared, and the material is linked to a subcontracted operation, the material is sent to the subcontractor.

Text

If this check box is selected, a text is present.

Print on Order Document

If this check box is selected, the BOM component is printed on the order document.

Users can specify whether or not they want to print a BOM material on the order document. For example, a user can choose not to print the floor stock in the material list.

Link with EDM

If this check box is selected, the engineering bill of material line was copied to the production bill of material.

Reference Designators Present

If this check box is selected, one or more reference designators are present in the Reference Designators by BOM (tibom0120m000) session.

You cannot modify this check box.

To view or maintain reference designators, click Reference Designators by BOM.

In Process by Change Management

If this check box is selected, the BOM line is under change management control. If a change order is linked to the BOM, and the change order has not yet been approved, LN selects this check box.

In the Change Management (CHM) module you can keep track of the effective and expiry dates of a BOM line according to a defined procedure.

Extra Information

If extra information exists about the BOM line, you can find the information in this field.