Buyers Are Wasting Money on Alt IDs
Briefly

Brands over-target and waste budget due to limited cookieless inventory when using alternative identifiers like ID5, UID2, and RampID for audiences in environments lacking cookies.
[SSPs] prioritize using third-party cookies when available, leading to over-targeting and wastage as brands struggle to find accurate data and run effective cookieless campaigns amidst limited inventory.
Read at Adweek
[
add
]
[
|
|
]