NOTE: To add line items to a record (for example, to add Services to a Contract record), the line items (a.k.a Custom Object) grid must have been added to the Contract layout. For more information, click the Adding Sub-Grids to a Layout link.
Open the record to which you want to add the line items and scroll to the section containing the custom object grid.
Click
.The list of custom line items appears at the top. HINT: You can use the Search field at the top right to filter the list.
Use the checkbox to select the item(s) you want to add.
Click
.