Hi @tva
I’m glad that you got it working 🙂
Regarding your question, do you want to be able to update the relationship from the overview page (front-end) or not?
If you want to update it, you need to use the acf_form() function. If you only want to show it, please take a look at this page: https://www.advancedcustomfields.com/resources/relationship/.
I hope this helps!