LIGHTSPEED → MARSELLO
Lightspeed Customer / Product Merge
Match your sales records to customer contact details and download ready-to-review CSV files.
🔒 Your customer files are processed entirely in this browser. Nothing is uploaded or stored on a server.
Select both CSV files to continue.
Processing complete
—Matched sales rows
—For review
—Marsello contacts
Download your output files:
Before importing: Have Marsello support confirm the test format and review the No Email / No Phone flags. If uploading with Points=0 through a points/tag import, choose Add imported points, never Replace existing balances.