To stop a scheduled report from being sent out, you have two options: either deleting the report as a whole or temporarily disabling it.
For either of these actions, you'll need to follow the steps below:
Go to My Scheduled Report Page.
Select the Google Ads account for which you want to delete the Report Schedule. You can also search for the name or email in the search box.
To temporarily disable the report from being sent out on a schedule, head on to the Status box and click Change to disable it.
To delete the set schedule, and avoid the report from being sent out on a schedule, head over to Operations and press the trash icon to delete it.