Data Scrub Tool
In this tool, by supplying a spreadsheet file you can filter out rows that correspond to contacts already existing in the portal. After the scrubbing is complete, you will be able to download a filtered version of your file.
✔️ From your menu on the left side of the screen click Data Management and then Data Scrub Tool.
✔️Select the file you wish to “scrub” and check the phone number under “check by”.
Select the column that the phone number appears in by counting A=1, B=2 etc.
✔️Select the country and then “Start Scrubbing”.
✔️Download the filtered version of your file after scrubbing is complete.