For a marketing agency to manage your YouTube ads, you will need to add them as a manager to your YouTube brand account.
You can do this after you’ve created your YouTube channel.
See the instructions below on how to allow a marketing agency to manage your YouTube ads.
A marketing agency can send you an account access request to your Google Ads account.
This will allow the marketing agency to manage and run ads for your advertising campaigns on Google and YouTube.
Follow the instructions below to accept an account access request.
After creating your Facebook business and ad accounts, a marketing agency will now need advertiser access on these accounts to get started on your campaigns.
See the instructions below to grant a marketing agency access to your Facebook ad account.