I'm still working my way up the learning curve for Drupal and I can't seem to find an answer.
I have created a custom content type. In my case, it describes an investment property (purchase price, rental income, etc).
I now want to create another couple content types: Expense and Income that will be used to track any expenses or income that apply to a particular property.
What I can't figure out is how to let the user choose which property an expense or income would apply to. That is, I want a field where the user can select the property.
Do I need to write a module that makes the property available as a field?
Thanks in advance.