Using experimental spreadsheet

hello
I created my app to process some data recorded in multiple lists and send them to a google sheet and finally take the template in pdf.
My problem is to send the data to the google sheet because when I use UPLOAD DATA or UPDATE DATA in a cycle of n times not all the data is recorded … is there a way to solve the problem? … thank you

@bigfoot50 please don’t use full caps letters in the heading and the post