When a developer designates a Sitecore template field multilist type, what should they do next?

After designating a Sitecore template field as a multilist type, the next step is to set the data source for the multilist. This involves specifying the location within the content tree from which the list items will be drawn. The data source defines the scope of items that can be selected and displayed in the multilist.

References:The Sitecore XM Cloud documentation provides guidance on configuring selection fields, including multilists.It details how to control the list of items by setting the Source property, which determines the items that appear in the selection list1.Additionally, developers can use the Sitecore.Data.Fields.MultilistField class to manage the items in a multilist field, including setting the data source2.