How to add us as a partner to your Facebook Business Account
If you're a business that works with an agency or consultant, you can add them to your Business Manager and share your assets with them. When you add a partner to your Business Manager, you can grant access to different assets and assign specific permission levels. Partners can see assets you share with them in their Business Managers.
Here are the steps to add a partner to your Facebook Business Account:
Step 1: Log in to your Facebook account https://www.facebook.com
Step 2: Open up a new tab/window on your browser and type the URL business.facebook.com
Step 3: Go to business settings https://business.facebook.com/settings
Step 4: Below Users, click on Partners
Step 5: Click on Add button under Partner to share assets with
Step 6: Enter the Partner Business ID: 258777077835752 and click Next.
Step 7: On this screen, you can add partners to multiple assets (page, ad account). Choose a type of asset in the first column. Select the assets you want to add your partner to in the second column. Assign a role for your partner in the third column. Repeat these steps until you've chosen roles for all of the assets you want to assign.
Step 8: Click Save Changes.