# Define a configuration characteristic

> Make an item configurable and add the characteristics to be asked in sales — type, mandatory setting, allowed values, range and default.

URL: https://erpdocs.corexlogic.com/en/uretim/islemler/yapilandirma-ozelligi-tanimlama

- **Type:** Task
- **Module:** Manufacturing
- **Menu path:** Ana Veriler › Ürünler › Ürün Ana Verileri › ürün detayı › Yapılandırma (Master Data › Items › Item Master Data › item detail › Configuration)
- **Screen route:** `/erp/catalog/products/{id}?tab=yapilandirma`
- **Required permission:** `erp-catalog-items.edit`
- **Prerequisites:**
  - The item card is open and its type is a produced item (Mamul (Finished product) or Yarı Mamul (Semi-finished product)).
  - The characteristic to be used exists in the **Özellikler** (Characteristics) dictionary or will be created in the window; its code consists of letters, digits and underscores (rules read it by this code).

A configuration characteristic is an option of a configurable item that is asked of the customer: length, color,
power, series. The characteristic type determines how it is read in a rule (option code as text, number as number,
Yes/No): [Expression language](https://erpdocs.corexlogic.com/en/uretim/kosullar#ifade-dili).

## Steps

1. Open the item in **Ürün Ana Verileri** (Item Master Data) and go to the **Yapılandırma** (Configuration) tab.
   <!-- action: open · target: "Yapılandırma" -->
2. If the card is standard, click **Yapılandırılabilir Yap** (Make Configurable) and confirm the question "Ürün yapılandırılabilir yapılsın mı?" (Make the item configurable?) with **Yapılandırılabilir Yap**.
   <!-- action: click · target: "Yapılandırılabilir Yap" · expect: "The Yapılandırılabilir (Configurable) badge in the header; the Yapılandırma Özellikleri (Configuration Characteristics) section opens" -->
3. Click **Özellik Ekle** (Add Characteristic). In the **Özellik** (Characteristic) field, search for and select the characteristic from the dictionary; if it does not exist, enter the **Ad** (Name), **Kod** (Code) and type of the new characteristic.
   <!-- action: click · target: "Özellik Ekle" · value: "BOY — Ondalık, birim m" -->
4. If the characteristic is to be entered on every order, turn on **Zorunlu** (Mandatory).
   <!-- action: click · target: "Zorunlu" -->
5. For a characteristic with options, if only some values can be selected for this item, turn on **Değerleri sınırla** (Restrict values) and check the valid values. For a numeric characteristic, fill in the **En az** (Minimum), **En çok** (Maximum) and **Adım** (Step) fields of the **İzinli aralık** (Allowed range).
   <!-- action: fill · target: "En az" · value: "2 · En çok 30 · Adım 0,5" -->
6. If necessary, select a **Varsayılan değer** (Default value) and click **Ekle** (Add).
   <!-- action: click · target: "Ekle" · expect: "The characteristic is added to the Yapılandırma Özellikleri (Configuration Characteristics) table" -->

   ![Product › Configuration — characteristics, precondition, object dependencies](https://erpdocs.corexlogic.com/en/en/img/screens/uretim/yapilandirma-sekmesi.png)
   1. Add Characteristic
   2. Characteristic with a precondition
   3. Required
   4. Default value
   5. Object dependency — constraint, procedure, table

**Result:** The characteristic is asked in the configurator of the sales line and in the BOM's Configure and Test window; rules read it by its code. Next step: if necessary, a [precondition](https://erpdocs.corexlogic.com/en/uretim/islemler/on-kosul-tanimlama), then [line rules](https://erpdocs.corexlogic.com/en/uretim/islemler/satir-kurali-tanimlama).

## What you need to know

- In sales, the question order is the order in the table; it is changed with the up/down arrows on the row.
- An optional characteristic can be left empty; in rules, an empty value is **unknown**. Write a condition that reads
  it accordingly: [Unknown value](https://erpdocs.corexlogic.com/en/uretim/kosullar#bilinmeyen-deger).
- An out-of-range value prevents the sales line from being saved:
  `'Boy' değeri izinli aralıkta değil (2–30 m, 0,5 m adım).` (The value of 'Boy' (Length) is not in the allowed range
  (2–30 m, 0.5 m step).)
- On an item that has variants, a new characteristic can be added only as optional.
- To load characteristics in bulk, use the **Yapılandırma** (Configuration) sheet of the Product Import workbook
  (`Zorunlu`, `IzinliDegerler`, `EnAz`, `EnCok`, `Adim`, `Varsayilan`, `OnKosul`).

## Related

- [Configurable items](https://erpdocs.corexlogic.com/en/uretim/ekranlar/yapilandirilabilir-urunler)
- [Conditions and formulas](https://erpdocs.corexlogic.com/en/uretim/kosullar)