# Linked objects setup To implement the Schedule Configurator, you first need to specify a Parent object, a Line-item object, and a Schedule object. {% hint style="info" %} For example, if you want to build a configurator to allow you to create schedule to an opportunity, you would set the Parent object to the Opportunity object, the Line-item object to the Opportunity Product object, and the Schedule object to the OpportunityLineItemSchedule object.( You need to enable Product Schedules Settings in Setup before you can use the object.) {% endhint %}

Item	Description	Req.
Parent Object	The object to which you want to add a line-item configurator, such as an opportunity, quote, contract.	✔️
Line-item Object	The Line-item object is the Junction which connects the other two objects. For example, the OpportunityProduct, QuoteLineItem objects.
Schedule Object	The object where the schedule will be stored. 💡 Tip If you use Line-Item, you must have a Lookup relationship with Line-Item. If you are not using Line-Item, you must have a Lookup relationship with Parent. You must have a Lookup relationship with Schedule Configurator.	✔️

Item

Description

Req.

Parent Object

The object to which you want to add a line-item configurator, such as an opportunity, quote, contract.

✔️

Line-item Object

The Line-item object is the Junction which connects the other two objects. For example, the OpportunityProduct, QuoteLineItem objects.

Schedule Object

The object where the schedule will be stored.

💡 Tip
If you use Line-Item, you must have a Lookup relationship with Line-Item.

If you are not using Line-Item, you must have a Lookup relationship with Parent.

You must have a Lookup relationship with Schedule Configurator.

✔️

### Line-item Object Advanced Setting Set sorting, conditions, and more when importing saved records in the Line-Item Editor.

Item Description

Order By

Item	Description
Order By	Sets the sorting when returning records for a saved line-item. Enter the `ORDER BY` clause in SOQL. For example, if you want results to appear in descending date order, you can write `CreatedDate DESC`.
Advanced Condition	Specify a pre-filter condition to restrict the results users will see. Enter the `WHERE` clause in SOQL. For example, if you want users to see only records that are active (field: isActive), you can write `IsActive = true`.

Sets the sorting when returning records for a saved line-item. Enter the ORDER BY clause in SOQL.

For example, if you want results to appear in descending date order, you can write CreatedDate DESC.

Advanced Condition Specify a pre-filter condition to restrict the results users will see. Enter the WHERE clause in SOQL.

For example, if you want users to see only records that are active (field: isActive), you can write IsActive = true.