How to bulk update a field
Hi
I have 3000 leads that are missing their respective and unique account numbers. I missed adding the account number column when I uploaded the CSV.
I want to update those email addresses and want them to have their respective account numbers reflected in their information tab.
The list already has campaigns running on them.
I have the updated CSV with email addresses in column 1 and the account number in column 2.
What will be the best way to accomplish this task without any error?