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# Add/remove modifiers in ViKING POS

If your ViKING solution has been set up to support it, you can handle modifiers in [ViKING POS](/help/pos/wpu). As the name suggests, modifiers are aspects of an article that you can add or remove to modify the article according to the customer's requirements.

Modifiers are often used in restaurants, typically in the QSR (Quick Service Restaurant) segment, where sales assistants can use them to customize orders. Many quick service restaurants also offer modifiers on their self-service displays, so customers can themselves place orders that match their individual tastes and requirements.

> **Tip**
>
> Example: A sandwich in a quick service restaurant has four modifiers: *Cheese*, *Mayonnaise*, *Onions*, and *Tomato*. With those modifiers you can, for example, sell an individually modified version of the sandwich with *Cheese* and *Mayonnaise*, but without *Onions* and *Tomato*.

In the following example, we'll pretend to be a sales assistant who sells a customized burger meal to a customer in a fictive quick service restaurant:

> **Info**
>
> Workflows differ between restaurants, so the following is only an *example* of a workflow. Your organization may use different workflows. Ask your supervisor if you're in doubt.

1. In the quick service restaurant, the ViKING POS touch display has buttons for selling articles. That's because the restaurant's articles don't have barcodes that you can scan.

You tap the required article, in this case the *Famous Star* burger meal:

![Webposui modifiers viewgroup burgers hilite meal](/_fern-files/_img/37485b5e187aeb80822e2bf60b247751791f5abd9b0adf30b16fb65d0b7fd3d9.webp)

2. The burger meal can be modified, so a dialog opens with a choice of modifiers.

The customer has some special dietary requirements, so you tap the dialog's first section and select *No Onions*, *No Tomatoes*, and *No Pickle*:

![Webposui modifiers famousstar extras hilite meal](/_fern-files/_img/8afce397c0b7814137c71464a425167366101e8904e9314f6336c13a8b62a634.webp)

3. The burger meal by default comes with a large soda, but the customer wants to upgrade that to a large vanilla shake, so you tap the dialog's *Drinks* section and add a large vanilla shake:

![Webposui modifiers famousstar drinks hilite meal](/_fern-files/_img/7db78d97a99cdf70aea74c03fd1b577707e03d3910e2351804ee34646c5a74dd.webp)

Note how the price on the green button in the bottom right corner of the dialog is automatically updated to reflect the extra cost of upgrading the meal's drink to the vanilla shake.
4\. The customer doesn't want any other sides than the meal's default large fries, so you don't need to expand the dialog's *Sides* section.

Instead, you tap the dialog's green button to proceed:

![Webposui modifiers famousstar modified howmany proceed](/_fern-files/_img/294971828cec00a038e9dfaf2dd755e1bd90c2d087fd64f38791206957352806.webp)

5. In the example restaurant, the display has been set up to ask how many units of the modified burger meal you want to sell. That can be convenient if, for example, three friends want to order three identical modified meals together.

![Webposui modifiers famousstar modified howmany meal](/_fern-files/_img/5a5f4a15acc7c73ed6014ca8a8affe54f179e3e80431ed9b39c3c00ebc3e1248.webp)

In your case, the customer is actually also ordering for a friend who wants an identical meal, so you use the dialog's keypad to enter `2` in **Quantity** field.

Then you tap **Add**.

> **Tip**
>
> Note that the **Quantity** field is prefilled with `1`, so in cases where you're only going to sell a single unit of the article you can tap **Add** directly.

6. The modified order is added to the display's journal, where it appears on a single journal line with information about what's been removed and what's been added:

![Webposui modifiers journal line](/_fern-files/_img/0d948a1f8bbef7f4a8cafd13a3d8f12f0dab0ffce7c696c4d3b470bc78b8cd0b.webp)

7. You can now sell the two burger meals as usual (see [Handle sales in ViKING POS](/help/pos/sales) for more information).

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Related: [Handle sales in ViKING POS](/help/pos/sales)

Related: [ViKING POS self-service checkouts (SCOs)](/help/pos/sco)