It's not clear to what extent advertisers and agencies are aware of the policy.
Two PMDs I spoke with recently – Brand Networks and TellApart – said advertisers by and large have not inquired about the transparency requirement, but they would welcome such interest.
"I think it is a huge difference from a policy perspective," said Rob Leathern, chief product officer at Brand Networks. "It is a very different approach, but most advertisers still don't know they can get this level of transparency."
Would it bother them if they knew? For some it might. One Facebook advertiser was recently upset to learn that $21,000 in media spend placed through a Facebook partner was found to consist of $9,000 in media costs and a $12,000 fee, according to a source who spoke with the marketer.
Another possibility is that the advertiser might care about media costs, but for some agencies, ad tech margins are the last thing on their minds. "They want to shuffle spend through the door," said one executive at a PMD company.
For others, transparency is key. Digital agency Essence handles much of its media buying in-house. Chief Strategist Andrew Shebbeare says programmatic buying has helped digital marketing evolve into a meritocracy, adding "Meritocracy only works with transparency."
He continued, "A policy of separating media cost from markup is good for brands and the whole ecosystem. Platform and service businesses should be compensated fairly for the value they add, but opaque 'all in' pricing encourages them to take credit for value they are not creating - for example the value of a brand's first party data. When you look beneath the surface, you often find that low-performance tonnage is being cross-subsidized by supernormal margins on higher-performance line items. When you blend performance through opaque pricing, you are missing out on a large slice of the programmatic opportunity."
Neo@Ogilvy, the digital marketing arm of Ogilvy, has taken advantage of the policy. Like Essence, it buys media on behalf of its clients through an internal team and does not mark up costs. In the rare cases when it uses managed services, it binds partners to disclose the actual rates they pay and believes media costs should matter to clients.
Aside from providing more visibility into performance, Facebook's price requirement may also serve to control prices. Even if advertisers don't often request price info, the possibility that they might could put a leash on runaway margins.
"The message could be, 'Hey, don't overcharge your client," said TellApart CEO Josh McFarland. "Maybe there's a little bit of that specter, just keeping everybody honest."