System programming · Guide

Setting up a sales modifier

Use a sales modifier in PowerEPOS to give one PLU several variants — sizes, or glass and bottle — with their own prefixes and prices.

Updated 27 October 2026 Version 1 3 min read

PowerEPOS

Sizes and variants on one PLU

Estimated time: 15 minutes

A sales modifier lets one PLU carry several variants. Rather than a Flat White Small, a Flat White Medium and a Flat White Large, you have one Flat White with a size chosen at the point of sale and the price to match. The same works for wine by the glass or the bottle, and anything else that is one product at more than one size or price.

In this guide

StartBefore you start
Creating the modifier
1Insert a new sales modifier
2Give it a name and a prefix
3Choose a pricing method
4Say which PLUs can use it
Setting prices for a price table
5Open the PLU
6Go to the Pricing tab
7Set the price for the modifier
8Save and publish
9Need help?

Start

Before you start

Your PLUs already created in the PLU list — see [Creating PLUs](/article/creating-a-plu).
Access to the Sales Modifier screen in POS System Manager.

Creating the modifier

Step 1

Insert a new sales modifier

Open the Sales Modifier screen in POS System Manager and select Insert. To add a PLU to a modifier you already have, select that one and edit it instead.

The Sales Modifier screen in POS System Manager with Insert

Step 2

Give it a name and a prefix

The name is what you will see when building buttons and looking through System Manager. The prefix is what is printed and ordered against — LRG for a large coffee, for instance.

The new sales modifier with its name and prefix entered

Step 3

Choose a pricing method

There are four ways a modifier can set a price.

Multiply — multiplies the active price level by a factor. Large is twice the price of regular, say.
Adjust — moves the price up or down by a fixed amount. Large is $1 more than the base PLU price.
Price Table — set prices by hand for up to nine price levels, for full control.
Set Price — charges one fixed price whenever the modifier is applied.

Step 4

Say which PLUs can use it

Sales qualifications decide which PLUs the modifier applies to. You can qualify by main group, by reporting group, or by naming specific PLUs.

The sales qualifications on a sales modifier

Setting prices for a price table

If the modifier uses a Price Table, the prices are set on each PLU rather than on the modifier.

Step 5

Open the PLU

Open the PLU List in POS System Manager, find the PLU and edit it.

The PLU list in POS System Manager with a PLU being edited

Step 6

Go to the Pricing tab

Step 7

Set the price for the modifier

Find your sales modifier in the list — it should be ticked. If it is not, tick it to enable it for this PLU. Then set the price for the price level that applies when the modifier is used.

The sales modifier ticked in the PLU's pricing list with its price set

Step 8

Save and publish

Select Save, then Publish Config to send the change out to the POS.

Step 9

Need help?

Triniteq support

Our support team is here to help.

Call 1300 784 276 or email support@triniteq.com, and include your venue name so we can find your setup straight away.

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