> For the complete documentation index, see [llms.txt](https://help.smallbuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.smallbuilder.com/smallbuilder-line-items/builder/builder-setup-steps/relate-objects/parent-object.md). # Parent Object The parent object serves as the master object for the line item object, maintaining either a Master-Detail or Lookup relationship. The Line Item Editor is executed from the record page of the parent object. When searching for a parent object in the builder, only objects with child objects can be selected.

The Line Item Editor is launched from the record page of the parent object. {% hint style="info" %} The Line Item Editor button can be generated in the builder and added to the desired page layout. {% endhint %}