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Bill Of Materials

A Bill of Materials is a list of items and sub-assemblies with quantities required to manufacture an Item.

A BOM may also contain the manufacturing operations required to manufacture the Item.

A Bill of Materials (BOM) is at the heart of the Manufacturing system and the most important document that will help to create other document types like Work Orders and Job Cards. ABNERP supports multi-level BOM. To know more, visit this page.

The BOM is a list of all materials (either bought or made) and operations
that go into manufacturing a finished product or sub-assembly. In ABNERP, each item (sub-assembly) could
have its own BOM hence forming a tree of Items with multiple levels.

To make accurate Purchase Requests, you must always maintain correct BOMs.

To access the BOM list, go to:

\u003e Home \u003e Manufacturing \u003e Bill of Materials \u003e Bill of Materials

\u003e Note that once a BOM is submitted, it cannot be edited. You can only cancel the existing, duplicate it and submit another one. A BOM is also linked to multiple places in the Manufacturing module, so making changes to it can be time-consuming and tedious. Hence it is a good practice to carefully think and fill out the BOMs before submitting.

1. Prerequisites​

Before creating and using a BOM, it is advised that you create the following first:

2. How to create a Bill of Materials​

  1. Go to the Bill of Materials list, click on New.
  2. Select the Item to be manufactured. The Item name, UoM, company, and currency will be fetched automatically.
  3. Enter the quantity of the Item that will be manufactured from this Bill of Materials.
  4. Under the Items table, select the raw materials (Items) required to manufacture the Item. Then proceed to:
  5. Select the quantity of Raw Material used.
  6. Set an Item operation here to be fetched in Work Orders later.
  7. If this Item is a sub-assembly, the default BOM for it will be fetched.
  8. Select the Source Warehouse to track inventory.
  9. Enter the scrap percentage that will remain after this raw material is used. BOM Materials](/files/bom-materials.png)
  10. Under the Scrap section, select the scrap Item that will be created when manufacturing and its quantity. The scrap Item can also have a Rate if it is a by-product and not waste. Skip this section if 100% of raw materials are completely utilized. If the scrap Item is the same as the Item to be manufactured, it is set as a Process Loss Item and its quantity is subtracted from the manufactured Item quantity.
note

In ABNERP v16, the Scrap Items table has been replaced with Secondary Items. Read more about it here.

  1. Save and Submit.

In the Items table, you'll see an option 'Include Item in Manufacturing'. Raw Materials need to have this checkbox ticked. In case there are Operations or services you need to include in the BOM that are not necessarily an Item used for manufacturing, uncheck this checkbox. For example, treating the plastic with a chemical involves some cost but it is not an Item and the cost needs to be tracked.

2.1 Consume Components Based On​

\u201cConsume Components\u201d in ABNERP automates raw material consumption when a Work Order is completed, reducing the need for manual inventory updates. It consumes stock automatically based on either the Bill of Materials (BOM) or actual material transfers, making it ideal for high-volume, standardized production environments that aim to improve inventory accuracy and minimize manual data entry.

  • Consumption Methods:
    • BOM: Automatically consumes raw materials based on the quantities defined in the BOM, multiplied by the finished goods quantity.
    • Material Transferred for Manufacture: Consumes only the materials that are physically transferred to the shop floor (Work In Progress Warehouse) through a stock entry.

If you want to set default \