Hi is there a schema doc somewhere of the data structures and how the relationship between tables are linked, if there is a relationship.
I do not want reverse engineer the relationship by query one table and query another time and try to find a collection with tables names and values.
Example: I assume there is a foreign key between Contact and Lead table?
Thanks in advance for your assistance.
I can definitely say that the response time and feedback is exceptional.
I assume you are aware of the table schema reference but I’ll link that here:
https://developer.infusionsoft.com/docs/table-schema/
It’s not an ERD but is helpful. Also there is a graphic that you have to zoom in on to see but is helpful in looking at table dependencies. @Pav hosts it here:
Hope that all helps 
Thank you.
This will help for sure.
I need to point out that Diagram needs to be upgraded as I have found more Table Relationships, plus there is a few other new API Tables.