Customer Match Bulk uploads at Scale

[leona...@google.com]

Are any outside API's  able to support the bulk upload of customer match email lists at this level?  400-500 customer lists  to bulk update them on a weekly basis?

[Yin Niu]

Hello, 

You can process up to 10,000 userlists in a single mutate call and can add/remove a maximum of 10,000 email addresses for each user list.  

Thanks,

Yin, AdWords API Team.