Relation between two gsheets

[faustotrucillo]

Hi, I'm new to Appsheet.
I have two gsheets, one with the details of the books and one with the expiration of the rights of those books.
I would need to connect them and I did it with the "ISBN" field but to correctly display the deadlines on the first sheet I have to modify the line by re-entering the correct ISBN even if it was already correct.
Is there a way to make him do it automatically?
Thank you