“MCC (my client center) account” handles multiple accounts of Search Ads and Display Ads. You can expect more efficient and simple account management by using MCC accounts.
Example: When Agency A creates an MCC account
It is recommended to use MCC account in the following cases.
	
You want to handle multiple accounts.
	
For needs such as "to manage multiple accounts in a single location" and "to share Target List and reports across accounts."
Learn more about the advantages and how to use in the following help pages.
Advantages
Creating MCC account and associating to multiple accounts
Advantages
Effectively manage your accounts
Simplify access management
Sharing Target list between accounts
Using reporting feature across accounts

1. Effectively manage your accounts
The “Account list” of the Campaign Management Tool shows all accounts, and you manage by accounts. By using MCC and managing multiple accounts in a single location helps you save time on managing your accounts. You can also associate accounts of other companies.
You can view the associated accounts in the Campaign Management Tool by using an MCC account. You can manage budgets, editing, etc., of multiple accounts in a single location.

2. Simplify access management
The MCC account simplifies access and ensures proper management for advertising managers.
Example using MCC account
・The tool users of the MCC account will be able to update the accounts under the MCC account by giving the “Edit” access.
・The tool users of the MCC account will be able to make payments by giving the “Admin” access. Giving Tool admin access is not necessary.
Learn more on the following help page and the document.
Manage account access 
About MCC accounts and available actions for each ad account (PDF)
3. Sharing Target list between accounts
You can also share your target list between ad accounts linked to your MCC account (Display Ads only).
Learn more details on “Sharing target list on MCC account”.
4. Using reporting feature across accounts
MCC accounts allows you to view reports across account for the following reporting features (Display Ads only).
You can create a report from up to three accounts.
	
Cross-campaign Reach report
By selecting multiple campaigns and campaign goals, this report allows you to check the unique user that overlaps between each index, such as viewable impressions, clicks, and conversions.
	
Conversion Path report
This is a report on conversions that were counted under your account. The report shows the user's action on the ad that leads to conversion.
For more details on the preceding reports in the following help pages.
Specify multiple accounts to display a Cross-campaign Reach report
Specify multiple accounts to display a Conversion Path report
Start using MCC account
First, create an MCC account. Learn more about 
Create MCC account

Next, associate the MCC account you created with an account.
There are two methods depending on the status of your account.
Associate existing accounts
Associate new accounts
Associate new accounts
Associate the MCC account you created to the existing account (account link).
Request an account link to an existing account from the MCC account.
Request account link
A user who has admin access of the existing account receives the request.
A user who received the request accepts or revokes the request of account link. When the request is accepted, the account link completes.
Accept or revoke account-link request
Associate new accounts
From the MCC account's management page, you can create a new account-linked account.
You don't need to request or accept account-links. See the following page for details.
Create new account-linked accounts
View this page in Japanese