Before you begin
Follow the Formatting guidelines for uploading unhashed data
. The column header names in your customer data file must be in English.
Instructions
Follow the instructions below to hash your customer data.
Hash your customer data yourself
You can hash your customer data yourself using the SHA256 algorithm. There are many external resources, like this wiki page, and code samples in our Developer’s Guide that have a lot of information about the hashing standard (sha256). You can also use one of the many free hashing services online to produce the necessary .csv if you can't write a code of your own.
Have Google Ads hash your customer data
You can let Google Ads hash it for you using the same SHA256 algorithm , which is the industry standard for one-way hashing .
