EndNote's current APA 6th style does not reveal the URL of a journal article if it does not have a DOI.
If you are using APA 6th or another style that requires the URL to be revealed and it is not displaying, follow the below steps to force the URL to be displayed.
In 'Field Substitutions' you can direct EndNote to substitute certain fields with other data that has been imported with the reference.
This will direct EndNote to display the URL of the source if there is no DOI present.
Important Note: For journal articles, you still need to manually edit the URL field and input the correct URL. For example, in APA 6th, you will need to change the URL to the journal homepage.


Q. Can I submit a request to EndNote to create a new style or modify an existing one?
A. Yes, you can see if EndNote can create a new style or modify one by submitting an Output Style Request form; however, submit this early!
Find and attach the guidelines of your required style (usually found on the journal's homepage) to make it easier for the EndNote team to create.