---
title: "Troubleshoot product modeling"
slug: "troubleshoot-product-modeling"
updated: 2024-11-26T10:05:46Z
published: 2024-11-26T10:05:46Z
canonical: "docs.zilliant.com/troubleshoot-product-modeling"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zilliant.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshoot product modeling

### Product BOM is not available for a BOM explosion trigger

If you don't see a product BOM when defining a [BOM trigger](/v1/docs/define-bom-triggers), check whether the BOM is linked to the knowledge base.

To link a product BOM to the existing knowledge base:

1. From the application left navigation area, select **Products**.
2. Select a product.
3. From the top navigation bar, select **Knowledge Base**.
4. On the knowledge base row, select ![](https://cdn.document360.io/24f960e8-3c1c-4c18-a2c6-83b6ae4aab84/Images/Documentation/CPQ-icon_three%20dots.png?sv=2026-02-06&spr=https&st=2026-11-02T13%3A47%3A44Z&se=2026-11-02T14%3A47%3A44Z&sr=c&sp=r&sig=FtI%2FZfxvstnjPQOwxn0XZRhl8w7K%2FKzSg8wlp5qtF6E%3D), then select **Edit knowledgebase**.
5. In the **Uses BOM** field, select the needed BOM.
6. Select **Update**.

### I don't know how to define a range trigger based on the quote's sales organization

To define a range trigger based on the quote's sales organization, [create a quote attribute](/v1/docs/create-quote-attributes-kbtriggerrelation) with the following search expression: `Quote().hasSalesOrg.objectERPId[0]`

Then define the range trigger by following [these steps](/v1/docs/define-range-triggers#define-range-restrictions-based-on-a-quote-attribute).

A trigger, also known as *KBTrigger*, is a rule that allows to automatically explode a product BOM, assign attribute properties, calculate attribute values, and more. Triggers also allow you to limit attribute values to ensure that users can create only a valid configuration of the product.