> For the complete documentation index, see [llms.txt](https://docs.solutioo.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solutioo.de/datanorm-item-import/datanorm_en_us/prices/scale-prices.md).

# Scale Prices

## Where they come from

Scale prices come from the **Z record**. The supplier states from which quantity a lower price applies – for example 12.50 from 10 pieces and 11.80 from 50 pieces.

## How the app represents them

With **Write Scale Prices (Z Records)** enabled, each tier becomes an additional line in the same purchase price list for the vendor, carrying the minimum quantity from the Z record.

<table><thead><tr><th width="230">From the Z record</th><th>In the price line</th></tr></thead><tbody><tr><td>Article number</td><td>Item of the price line</td></tr><tr><td>Minimum quantity</td><td><strong>Minimum Quantity</strong></td></tr><tr><td>Scale price</td><td><strong>Unit Cost</strong></td></tr><tr><td>Validity date</td><td><strong>Starting Date</strong>, where delivered</td></tr></tbody></table>

Business Central automatically picks the line with the highest applicable minimum quantity on a purchase order.

<details>

<summary><strong>Example</strong></summary>

An article has a base price of 13.20 and two tiers:

| Minimum quantity | Price |
| ---------------- | ----- |
| 0                | 13.20 |
| 10               | 12.50 |
| 50               | 11.80 |

Ordering 30 pieces uses the line with minimum quantity 10, so 12.50.

</details>

## Prerequisites

{% hint style="info" %}
Two toggles must be on for scale prices to arrive: **Process Surcharges** in the **Record Filters** section – so that Z records are read at all – and **Write Scale Prices (Z Records)** in the **Price Lists** section.
{% endhint %}

## If no tiers show up

<table><thead><tr><th width="330">Cause</th><th>Check</th></tr></thead><tbody><tr><td>The file contains no Z records.</td><td>Many deliveries come without scale prices. Price staging shows what was read.</td></tr><tr><td>Z records are switched off.</td><td><strong>Process Surcharges</strong> in the setup.</td></tr><tr><td>Writing is switched off.</td><td><strong>Write Scale Prices (Z Records)</strong> in the setup.</td></tr><tr><td>The article is not synchronised.</td><td>Synchronise the articles first, then write the price list.</td></tr></tbody></table>

## Surcharges

Besides scale prices, the Z record carries surcharges such as copper-dependent add-ons. The app takes those values as information on the article but derives no price from them. A day-to-day copper recalculation is not part of the app, see [Limitations](/datanorm-item-import/datanorm_en_us/importing-datanorm-files/limitations.md).


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