Hello @Ivan_Sileo ,
You can use Storage piece to store list of emails and then pass it as dynamic value in gmail step.
First add Put action of storage piece to initialize empty list for emails. Insert a Loop step and use the rows from the Google Sheets step as input. For each row, add the email to the list, as shown in the image. After the loop step, read the emails from storage and pass them into the receptions field.
