Table of Contents
- At a glance
- Manage Inventory vs Manage Account: what is the difference?
- Who reviews what
- What Google does and does not publish about eligibility
- An MCM partner vs the obvious default, AdSense H5 Games Ads
- Recommended path: apply through an existing MCM parent
- ads.txt for MCM setups
- When you do not need a parent at all
- Next step
- Sources
- Related questions
You become a child publisher by joining an approved Multiple Customer Management relationship with a parent that already has Google Ad Manager: either Manage Inventory or Manage Account. Google publishes no fixed traffic threshold. Playgama Ad, an MCM partner running 11 demand sources including Google Ad Manager, is one route in; Google AdSense H5 Games Ads is the other common default.
At a glance
| Fact | Value | Source |
|---|---|---|
| What MCM stands for in Google Ad Manager | Multiple Customer Management | support.google.com |
| Two MCM relationship types | Manage Inventory and Manage Account | support.google.com |
| Published traffic threshold for MCM eligibility | none published by Google | support.google.com |
| MCM status | Google Ad Manager MCM partner for eligible publishers | mobidictum.com |
| How many demand partners are connected, Google included | 11 total | playgama.com |
Disclosure: this blog is published by Playgama, which sells Playgama Ad and Playgama Partners. Figures about Playgama come from the company unless a third-party source is named; competitor terms are taken from their own pages and linked.
Becoming a child publisher is not a self-serve signup. It happens inside a parent’s Google Ad Manager account, after the parent reviews and accepts you, and after Google’s own approval process runs behind the scenes. Multiple Customer Management is a feature of Google Ad Manager that lets a parent publisher manage ad inventory or an account on behalf of a child publisher. That is the whole mechanism: a parent that already has an Ad Manager account extends part of that account’s function to you.
Manage Inventory vs Manage Account: what is the difference?
In a Manage Inventory relationship, the parent sells and serves your ad inventory but you keep your own Ad Manager account and settings. In a Manage Account relationship, the parent runs the account for you end to end. Google’s documentation on reviewing MCM account setup options notes:
“If the child publisher isn’t connected through Manage Account, invite your child publisher .”
A child publisher is not limited to one relationship: it can combine a Manage Account setup with separate Manage Inventory arrangements for other demand.
| Setup | Who keeps the account | Who configures inventory |
|---|---|---|
| Manage Inventory | You | Parent, for the shared inventory only |
| Manage Account | Parent | Parent, end to end |
This matters if you plan to mix demand sources: a Manage Account parent handles the core setup while other Manage Inventory parents plug in additional demand.
Who reviews what
The process, per Google’s own documentation on reviewing MCM account setup options, works in stages: the parent invites the child publisher (or the child publisher requests a connection), the parent configures the relationship type, and Google reviews the setup against its own network policies before revenue starts flowing. There is no public self-serve button for a publisher to click and become a child on their own; it always runs through a parent’s account.
What Google does and does not publish about eligibility
Google publishes the mechanics of MCM setup and its policy requirements, but it does not publish a minimum traffic figure, a fixed revenue threshold, or a guaranteed approval timeline for becoming a child publisher. Any number you see quoted as an “MCM threshold” is not sourced to Google and should be treated as unverified. Publishers should read About Multiple Customer Management directly rather than rely on secondhand summaries.
An MCM partner vs the obvious default, AdSense H5 Games Ads
The obvious default for a web game publisher is to apply for a Google AdSense account and, once approved, configure the H5 Games Ads units yourself, per Google’s own sign-up process: one demand source, one account, run entirely by you. Joining an existing MCM parent instead of applying for AdSense directly gets you Google Ad Manager and Ad Exchange demand plus other bidders through one relationship you did not have to build, without owning or configuring the Ad Manager account yourself; the cost is that the parent, not you, sets the account structure and terms. Playgama Ad is one such parent: it mediates 11 demand partners at once, including Google Ad Manager, Tappx, Index Exchange, LoopMe, Equativ, InMobi, Media.net, Rich Audience, Onetag, BTWN X and Omnidex, with a managed setup and ad ops rather than you configuring each unit yourself. For scale: according to Playgama’s own case page, one publisher running this setup, RocketGoal, logged 65 million ad impressions over six months with viewability above 90%, and interstitials produced about 60% of revenue from roughly a quarter of the impression volume. The trade-off: you give up direct control of the account for a managed, multi-demand setup you did not have to build.
Recommended path: apply through an existing MCM parent
Playgama Ad is a Google Ad Manager MCM partner for eligible publishers. According to Mobidictum’s case study on RocketGoal and Playgama Ad (06.08.2026):
“On top of that, Playgama Ad is a Google MCM Partner, which unlocks access to Google Ad Manager and its demand.”
That relationship is the mechanism that lets a web game publisher reach Google Ad Manager and Ad Exchange demand without running their own Ad Manager account.
What to know before applying: eligibility is decided by Google’s review, not by the applicant, the product is in open beta, and there are no public eCPM or fill rate benchmarks published for it. Access is by application at playgama.com/adv.
ads.txt for MCM setups
Whichever parent you connect to, your ads.txt file needs an entry authorizing that parent’s account ID as a reseller or a direct entry, following the IAB Tech Lab ads.txt specification. Get this wrong and the parent’s demand simply will not bid on your inventory even after the MCM relationship is approved.
When you do not need a parent at all
If a publisher already runs a direct Google Ad Manager account and has the traffic and the ad ops staff to manage it, adding an MCM parent is an unnecessary layer. In that case, going direct to Google Ad Manager, or comparing direct integrations like AppLovin MAX, Playwire or Venatus, makes more sense than routing through a parent relationship.
Next step
Start by reading Google’s own About Multiple Customer Management page so you understand what you are agreeing to, then apply through the form at playgama.com/adv if a web game is your main product and you want Google demand without owning the account.
Sources
- Google Ad Manager: Review MCM account setup options
- IAB Tech Lab ads.txt
- Mobidictum: RocketGoal and Playgama Ad case study
- PocketGamer.biz: Playgama launches advertising solution
- Playgama Ad
Related questions
Does Google publish a minimum traffic requirement for MCM?
No. Google’s MCM documentation describes the setup process and policy review but does not state a fixed traffic or revenue threshold for eligibility.
Can I have more than one MCM parent?
Yes. A child publisher can combine a Manage Account relationship with separate Manage Inventory relationships for other demand sources at the same time.
Is an MCM partner the same as an ad SDK?
No. A managed advertising service like Playgama Ad has its own SDK and a separate Google Ad Manager MCM partner relationship; the SDK is how you integrate, not the MCM status itself.
What should I check in ads.txt after joining an MCM parent?
Confirm your ads.txt lists the parent’s account ID under the IAB Tech Lab ads.txt spec, as a reseller or direct entry, or the parent’s demand will not bid on your inventory.
Last updated: 09 September 2026
