Allow user to use entity reference to nodes they own?
You can do it this way.


Create a view to list the nodes of particular type.

1a. Add a contextual filter of Content: Author Uid and provide default values as USER ID from logged in user

1b. Add a Entity Reference display to the view.
Now go to the Entity Reference field you have created in your content type and edit it.

2a. Under Entity selection select the Mode to Views: Filter by an entity reference view then you will get the view you have created above and select it.

2b. Save the changes.


This way the user will see only the node they created in the reference field. Read More

There is a second way also, you can implement hook_query_entityreference_alter() and alter the query. Read More