Let me try to muck this up even more.
Am I understanding you correctly when I say you have an application with 2 databases.
1 database is called "Plan Track V0.2”
1 database is called Plan Tracking Log
On the form of Plan Track V0.2 you have a subform that is made of the Plan Tracking Log.
If this interpretation is correct there is 2 methods to use this.
One method is you open your application go to Plan Tracking Log database and enter or update records.
You then leave that database and open "Plan Track V0.2”
When you go to a specific record you want the records associated with it that is in Plan Tracking Log to display in the subform.
This first method would use a relational link
The other method is
You open your application and it takes you to "Plan Track V0. You either enter a new record or search to find an existing record. Once on the specific record, you enter data into a subform created of the Plan Tracking Log database.
Every time you return to the specific record in "Plan Track V0 it displays the associated data in Plan Tracking Log subform.
This second method would use a natural link (or a relational link with some sbasic programming)
Both of these are easy to create. If you can tell us what method as explained above you are attempting to use, we can help you reach your goal.
I hope I am on the right track this time

Robert