Displayed Customer Match List Size differs from csv file
I've uplaoded a csv file with about 1500 email addresses -> ALL with @gmail / @googlemail.
Directly after uploading the list, adwords confirmed that all the adresses are in the correct format.
And 24 hours, after processing, my list size shrinks to a list with 500 to 600 available contacts.
Why does this happen?
And the other thing is: I intended to use this 1.500 address for a video campaign. Would it be also possible to use these 500 contacts or do I need the limit of 1000 addresses to be able to use this customer match remarketing list?
I'm confused and hope, taht you can hepl me!
Thanks a lot,