Hello, I have a feature layer and two standalone tables. I want to create a relationship class between the feature layer and both tables using the common field 'pond_id'. I have all 3 datasets added to my map from the GDB.
However, the option to add relationship class is greyed out:

I am not sure how to get around this. There are other similar questions to this which have been answered in this forum but none have provided a solution for me.
thanks,
JJ