# Changeovers

## Configure Changovers

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### Create a Property

Your Property name must match a [materials](https://help.tillit.cloud/tillit/knowledge-base/scheduler/setting-up-the-scheduler/configuration/materials "mention")Property or Order Property Name

{% hint style="info" %}
When evaluating the material properties, Scheduler will also consider the property of any raw material inside that Operation/Route/Segment.

Hence if the reason you are doing a changeover is a function of the raw material, you can use a property maintained in the raw material to drive the changeover duration.
{% endhint %}

Enter a property name and click Add.

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Double click on the Property then assign a Value and Colour.

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The colour will be used when scheduling to display different material and optimisation property attributes. See example below.

<figure><img src="https://s3.amazonaws.com/helpscout.net/docs/assets/60208fd212248b2c96d50eeb/images/62bba940eabe9a7235b38d37/file-NGEUrgBazk.png" alt=""><figcaption></figcaption></figure>

### Create a Changeover Set

A Changeover Set is used to define the From and To relationships for the changeover set based on the material attribute.

{% hint style="info" %}
Note, you can set a default Changeover Time that will be utilised if there is no defined property to property changeover time configured
{% endhint %}

<figure><img src="https://352909507-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrNT40XJFAFlAhUX8CcQS%2Fuploads%2Fgit-blob-b5e8023c8c5b4d2770cd5d5453d30e56057d72dc%2Fimage.png?alt=media" alt=""><figcaption></figcaption></figure>

Below is a wine example where the matrix are a range of Changeovers between Wine Colour (e.g Red to White wine), Glass Bottle Size (750ml to 187ml) etc.

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There will end up being a list of possible changeovers forming a matrix. The Optimiser will use this differential matrix to look for efficiency opportunities when optimising Orders.

### Assign the Changeover Set on an Equipment

The last step is to assign a Changeover Set to an Equipment. You can apply different changeover sets to different equipment depending on the requirements for each situation.

<figure><img src="https://352909507-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrNT40XJFAFlAhUX8CcQS%2Fuploads%2Fgit-blob-084e129063043281ab7a9362c04a55c29f3ec3ac%2Fimage.png?alt=media" alt=""><figcaption></figcaption></figure>

In the example above, the Changeover Set for Glass is assigned to both Wine Bottle Packaging Lines as they use the same changeover times for both lines.