---
title: "Why does a technician see materials on their invoice in ServiceTitan, despite the materials being assigned to separate trade categories?"
slug: "why-does-technician-see-materials-invoice-servicetitan-materials-assigned-trade"
updated: 2026-10-15T01:16:31Z
published: 2026-10-15T01:16:31Z
canonical: "help.servicetitan.com/why-does-technician-see-materials-invoice-servicetitan-materials-assigned-trade"
---

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

# Why does a technician see materials on their invoice in ServiceTitan, despite the materials being assigned to separate trade categories?

## Problem

A technician sees materials when adding items to their invoice, despite materials being assigned to separate categories for each trade.

## Solution

Resolve the issue of a technician seeing materials when adding items to their invoice in ServiceTitan.

### Check the category of the material

1. In ServiceTitan, go to the navigation bar and click **Pricebook**.
2. In the side menu, click **Categories**.
3. Select the **Materials** tab.
4. Look at the *Business Unit* column for the material in question. Ensure the business unit is not assigned to the material in question.

### Verify the category name isn't visible to the technician

Confirm if the category has a checkmark under the *Hide In Mobile* column.

### Download ServiceTitan pricebook on the technician's mobile device

1. Open ServiceTitan Mobile.
2. Tap **Sync** ![](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/icon-sync.png?sv=2026-02-06&spr=https&st=2026-10-31T01%3A49%3A31Z&se=2026-10-31T02%3A49%3A31Z&sr=c&sp=r&sig=WAJnGZnFKRcmkDLJtimDmFSCx0mMHGHnP27jA%2Bia7q0%3D) and select **Download pricebook**.

If downloading the pricebook does not resolve the issue, reinstall the ServiceTitan Mobile.

### Reinstall ServiceTitan Mobile

1. Uninstall ServiceTitan Mobile from the device.
2. Go to the App Store for iOS devices or Google Play Store for Android devices.
3. Search for **ServiceTitan Mobile**.
4. Download and install the app.
5. Log in and try adding items to an invoice again.