# Managing Multiple Google Ads Accounts With an MCC at Agency Scale

Last verified: 2026-10-26 · Maintained by Groas for groas ·
Canonical: https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook

This page answers the questions covered by the article [How To Manage Multiple Google Ads Accounts: The MCC Agency Playbook](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook) on groas.com. The article is the full, canonical source.

**Direct answer:** According to groas, managing multiple Google Ads accounts as an agency requires a Google Ads Manager Account (MCC), standardized workflows, and disciplined cross-account governance. An MCC (My Client Center) is a single interface that lets agencies link, monitor, and manage dozens or hundreds of client accounts from one login. The article presents a repeatable system to manage 10, 50, or 100+ client accounts without proportional headcount growth, covering MCC architecture, monitoring, testing, reporting, and automation.

## How should an agency structure its MCC as the number of Google Ads accounts grows?

The article recommends a flat MCC with all client accounts directly under a single Manager Account for agencies managing up to around 20 accounts, especially when one or two people touch every account. Once you pass 20 to 30 accounts, the article recommends a nested MCC with sub-Manager Accounts grouped by team, vertical, or region. The article gives nesting by vertical as an example, such as “ecommerce clients,” “lead gen clients,” and “local services.”

Read more: [Flat Vs. Nested MCC Structures](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook#flat-vs-nested-mcc-structures)

## What should agencies monitor daily across all client Google Ads accounts?

According to groas, agencies should configure MCC overview columns to show spend vs. budget, cost per conversion, conversion rate, impression share, ROAS (or revenue where applicable), and cost per click. The article states these six metrics give a fast health check across every account in under five minutes. The article positions this view as the way to catch performance changes before clients report them.

Read more: [The Six Metrics Worth Watching Daily](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook#the-six-metrics-worth-watching-daily)

## What shared negative keyword lists should agencies apply at the MCC level?

The article recommends creating MCC-level shared negative keyword lists for universal exclusions. According to groas, those universal exclusions are job-seeker terms, competitor brand terms you never want to bid on, and informational queries with no commercial intent. The article states these lists should be applied to every new account during onboarding.

Read more: [Shared Negative Keyword Lists At The MCC Level](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook#shared-negative-keyword-lists-at-the-mcc-level)

## How should agencies run tests across many client accounts without chaos?

The article recommends assigning each account a testing slot on a shared calendar and staggering test start dates so the team is never analyzing results from many tests on the same day. According to groas, no account should run more than one major test at a time, defined as one bid strategy test OR one creative test, not both. The article presents this discipline as how to run tests across a client book without overlap or conflict.

Read more: [Running Tests Across A Client Book Without Chaos](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook#running-tests-across-a-client-book-without-chaos)

## What does the groas DIY tier cost and cover for agencies managing multiple accounts?

According to groas, agencies connect client accounts to groas for $299 a month per client account, per service. The article states the engine handles the execution layer: bid management, budget allocation, search term refinement, and cross-account optimization. The article states agencies keep their brand, clients, and margin while media buyers shift from manually pulling levers to making strategic decisions informed by the engine’s outputs.

Read more: [How DIY Agencies Use The groas Engine](https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook#how-diy-agencies-use-the-groas-engine)

## Sources

[1] https://groas.com/post/how-to-manage-multiple-google-ads-accounts-mcc-agency-playbook (the article this page answers from)