# Infor LN planning BOM: how it works, setup and use (and what people mean by SIC planning)

> Source: https://netray.co/erp-help/infor-ln-planning-bom-and-sic-planning-explained
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: ERP Help

## Short answer

A planning BOM is a structure used by Enterprise Planning to plan at family or option level, rather than the production BOM used on shop orders. You maintain planning items and a planning structure with proportions, and the planning engine uses it to explode forecasts into component and capacity requirements. 'SIC planning' is not a term I can pin to a single standard LN feature, so check how your site uses it.

## Kind

how-to

## System

infor-ln

## Erp

Infor LN

## Module

Enterprise Planning

## Query

infor ln planning bom

## Alternate Queries

- infor ln sic planning
- infor ln planning bill of material
- infor ln enterprise planning planning items

## Applies To

Infor LN 10.x Enterprise Planning. Exact sessions and field names vary by version.

## Steps

### Use a planning BOM

**Items:**

- Decide which level you want to plan: finished goods, product families or options. Planning BOMs suit configure-to-order and high-variety families.
- Mark the relevant items as planning items in the item planning data and assign them to the correct plan unit or plan group.
- Create the planning BOM structure with the child items and the proportions or percentages for each option.
- Load a forecast on the family item, not on every end item.
- Run the planning (generate the plan) and review the exploded demand on the components and the capacity requirements.
- Review the supply plan and release the planned orders through the normal order planning route.

## Sections

### Planning BOM versus production BOM

**Body:**

A production BOM is the exact recipe used to build an item and to issue material. A planning BOM models expected mix: for example, a 'product family' that is 60 percent variant A and 40 percent variant B. It lets planners forecast one number and still drive component procurement.

Do not try to use a planning BOM to issue material. It supports planning decisions only. If you need to build exactly what is in a sales order, the engineering BOM path applies.

### Common mistakes

**Body:**

Proportions not summing to 100 percent, planning items not attached to a plan unit, and forecasts loaded on the wrong level are the top three. Another is expecting changes to the production BOM to appear in the planning BOM automatically; they are maintained separately and need a governance rule.

If MRP shows no planned orders for components, see the related page on planned orders not generated.

### About SIC planning

**Body:**

Searches for 'SIC planning' appear in LN contexts, but the abbreviation is used differently across companies and eras, and I cannot assert a single standard definition. Ask your LN consultant or check your own functional documentation; if it refers to a custom or legacy Baan concept, document it before migration.

## Pitfalls

- Proportions that do not total 100 percent.
- Forecasting at the wrong level.
- Letting production and planning BOMs drift apart.
- Using planning BOMs for material issue.
- Undocumented local terminology that nobody remembers after staff change.

## Ai Angle

An AI layer can compare your production BOM and planning BOM for the same family, flag proportion errors and show which components lack planned orders and why. Netray works on private, read-only access to LN data, with human approval before any write-back.

## Faq

### What is a planning BOM in Infor LN?

**Answer:** It is a structure used by Enterprise Planning to plan at family or option level, with proportions for child items, so demand can be forecast at an aggregate level and exploded to components.

### Is a planning BOM the same as a phantom BOM?

**Answer:** No. A phantom is a real production structure that is not stocked. A planning BOM is a planning construct for mix and does not drive production issue.

### Where do I load the forecast?

**Answer:** On the planning item that heads the structure. Loading it on end items double counts demand.

### What does SIC mean in LN planning?

**Answer:** I cannot confirm one standard meaning; the term varies between sites. Ask your consultant what it refers to in your configuration.

## Search terms

infor ln planning bom, infor ln sic planning, infor ln enterprise planning, infor ln planning item, infor ln bill of material, infor ln forecast planning, baan planning bom, infor ln planning structure

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