Using "Send Many Checks" to send Digital Checks allows the sender to create 1000 checks (1000 rows on the CSV) with one upload.
To create and send more than 1000 checks, the Sender needs to sequentially upload more than one CSV file. For example, to create & send 10,000 checks, the Sender needs to upload 10 CSVs.
Click "Send Many Checks" on the top left-hand corner of the page.
When in 'Send Many Checks', the Sender needs to select "Regular" or "Custom" based on the type of CSV file that they will upload.
To understand the differences between Regular & Custom CSV Uploads, click here.