Explanation
Whenever you run into audiences that have a high overlap, you should always merge both of them into one. If you run both audiences under the same campaign, you will have multiple ad sets competing against each other.
If you have never used Facebook's audience overlap tool, you can find it on Facebook's Ads Manager and follow the next steps:
* Click on the Tools drop-down menu and choose Audience.

* Once there, select the audiences you want to compare, click on the Actions tab, and choose Show Audience Overlap.
* You can select multiple audiences, but you will only be able to compare one against the other at a time.In the tool, you will be able to see the number and percentage of overlapping members between them.
A second option is to completely change one of the audiences so that there is less than 25% overlap between both audiences.
In this case, you could change audience #1 interests to something different but still related to your target market to have two potential audiences to use.

Explanation
If you want to advertise to people who have already expressed an interest in your products, you can run dynamic ads from your catalog. Dynamic ads pair images and inventory information from your catalog with signals from a Facebook pixel, which tracks activity on your website. You can also run collection ads, such as Instant Experiences, where people discover and purchase products and services through immersive mobile experiences on Facebook and Instagram. Collection ads take information from your catalog and people can tap on items to learn more about them or browse similar items.
There are several error messages when using the pixel.
Error: Pixel is not paired with a product catalog
This warning suggests that the pixel is not paired with any product catalog. It is required to specify relationship between pixels and product catalogs. For this specific question, all you need to do is connect your product catalog with your client's pixel.
There are two ways to pair a catalog with a pixel:
Business ManagerFollow these steps to pair a catalog with a pixel using the Business Manager:
* Go to business.facebook.com
* Settings page
* Choose "Product Catalogs" on the left pane
* Press "Associate Pixels" button
* Associate pixels with your product catalog.
Product Catalog Preferences APIYou can use the Product Catalog Preferences API pair a catalog with a pixel.
Keep in mind that you associate a pixel and a product catalog in your Business Manager and not the Ad Account.

Explanation
Rules-based models assign credit to one or more touchpoints according to rules that we set. Think of these models as different lensthrough which you can analyze results. For example, giving credit to the first and last touchpoints (impressions and clicks) leading to a conversion. Rules-based models using people-based measurement provide deeper insights than cookies-only measurement, since multiple touchpoints are tracked and correlated with an actual person.
With rules-based models:
* You define "the rule": How should credit be allocated?
* Results are based on your model choice.
* You choose where along the path to conversion you want to assign the credit: last click, even credit, time decay, or positional.
Statistical models use algorithms to determine credit for each touchpoint. These models are driven on a result (increased revenue) rather than an assumption of where to assign credit. They use all available data to determine which ads increase revenue. Like rules-based models, statistical models are far more effective at analyzing past results and predicting future results when using a people-based measurement tool.
With statistical models:
* Algorithms define the credit allocation.
* Results are dynamic and learn from historical data.
* They're also referred to as algorithmic MTA results-driven MTA.

Explanation
Your maximum ad spend will be $10,000. Keep in mind that Facebook used to have a +25% over your budget limit; however, it now stops at your campaign or account limit.
Keep in mind that you HAVE to set up an account or campaign limit in order for Facebook NOT to go over your budget.

Explanation
Metric: Estimated Ad Recall Lift (people)
An estimate of the number of additional people who may remember seeing your ads, if asked, within two days.
This metric shows results for ads using Brand Awareness, Video Views, and Engagement - Post Engagement objectives.