A link field connects one entity to another. In the schema designer, the link field is defined on the "child" entity, so that the child holds a single link back to the parent.
To define a link field:
- Set the data type to link, or use the Link field type.
- Select the entity to which you want to link in the Link entity drop-down on the Link tab.
- If you want to create entity records where none exists, set the autocreate option.
If you've used the Link field type, your link field should look something like this.