Before we dive deep into this topic, let's first discuss what agency ad accounts are. These are special ad accounts that Meta provides to large agencies to help them with their advertising needs.
These big agencies have substantial budgets and sometimes need special assistance to run ads. They spend in millions, so running ads through normal ad accounts can cause issues in the long run.
Some of these agencies share this privilege with others for a fraction of the cost. They let you use their ad account to run your ads, this is what we call agency ad accounts.
Many agencies have these special ad accounts from Meta, and some come with specific rules like domain locking and page locking.
What is the domain limit in agency ad accounts?

Domain limit in agency ad accounts means that you can only run ads for specific approved domains. You are not allowed to run ads for domains that aren't associated with the ad account. For example, if your ad account is approved for Domain A, you can only run ads with Domain A. If you have Domain B, you won't be able to use it because it's not connected to the ad account.
This restriction is called domain limit or domain locking because once a domain is connected, it's locked for life, you cannot change or update it.
Why is it like this? We're not actually sure, it's entirely up to Meta and their partners and contracts. These types of limits are mostly found in ad accounts from the HK region.
What is the page limit in agency ad accounts?

Just like the domain limit, pages are also restricted. Once you have connected a page with your ad account, you cannot connect or add new pages for running ads.
One important note: you're not limited to just 1 domain or page, it varies between agencies. From what we've seen, the limit ranges from 5 to 10 domains or pages. You can connect this many pages at once when applying for the ad account. Once approved, you can use these connected pages to run ads.
Here's the key limitation: you cannot add new pages later. If you need to run ads on a page that isn't connected to your ad account, you'll need to apply for a new ad account with these new assets (domain and pages).
Once approved, you can run ads on these assets.
Read More: Types of Agency Ad Accounts: A Complete Guide to Benefits, Drawbacks, and Features
Read More: Pros and Cons of Using Agency Ad Accounts
How to avoid these limits?

This is a very interesting question. We have discovered that these types of limits are mostly found in agency ad accounts from the HK region, meaning agencies that provide ad accounts from that region commonly have these restrictions. To avoid this, you can choose an agency outside of HK. This will allow you to have no limits, but keep in mind that non-HK agency ad accounts still have their own rules.
For example, EU region ad accounts have no such limits, but you are only allowed to run ads on one domain and page at a time. If you wish to run ads on a new domain or page, you have to completely stop running ads on your current domain and replace it with the new one.
This means you cannot simultaneously run ads with 2 domains or 2 pages at a time. This is their policy, and it might change depending on your region.
Types of accounts that have no limits
Agency ad accounts with no such limits are rare to find. These limits are put in place to avoid spam, but they are mostly found in agencies that provide HK ad accounts, meaning ad accounts from the HK region.
Try looking for an agency that has ad accounts from other regions as well. This will allow you to bypass these limits, which as we've seen so far are specific to HK.
Conclusion
Domain and page limits in agency ad accounts depend on the region of the ad account. Domain locking is seen in HK ad accounts with up to 5-10 pages and domains, while for other regions you can only use 1 domain and page at a time.
Threasury's Expertise in Agency Ad Accounts
Threasury Media have been providing agency ad accounts for almost two years now to advertisers from around the globe. We have HK, EU, and multiple region ad accounts with us. You can check our pricing page to see our prices, it's just a one-time payment to get access to all the perks.
Frequently Asked Questions (FAQ)
Q1. How many domains and pages can I connect to an HK region ad account?
Ans: It depends on the agency, as there are multiple agencies in HK, but it typically ranges from 5 to 10 domains and pages. Once connected, these cannot be unlocked or replaced with other assets.
Q2. If I need to advertise on a new domain, do I need a new ad account?
Ans: Yes, but only if your ad account has domain locking limitations. If your ad account doesn't have this limitation, you can simply replace the domain or pages with new assets.
Q3. What are the differences between HK and EU region ad accounts?
Ans: The only difference is that EU agency ad accounts are provided by agencies or partners from the EU region, while HK ad accounts are provided by agencies in Hong Kong.