If you want to carry out a Facebook advertisement, you should further know about ads audience which will make a difference in final Facebook ads results as follows:

1. Define Ads audience.
If you do Facebook ads for interests, you should use this feature - define the audience for your ads. The difficult part is how to find out the keywords of interest related to your product. The easiest way is to use Facebook's graph search function. For example, if we search for pages liked by people who like xx on Facebook, we can find a bunch of related pages. For example, if we search for pages liked by people who like wish, we can find some related pages by searching directly in the Facebook search bar. Similarly, we can also use Facebook search, an extension of Chrome, and select people who like xx in the configuration column. You can have a try to see if you can search for similar homepages.
We can also use Facebook's ads audience insights tool - audience insights website to analyze the basic information of the audience. For example, which countries are they mainly located in, what are their titles and education, and what are the pages they have liked?
In addition to Facebook's graph search to get audience interest keywords, a more common method is brainstorming. I suggest that you can target this issue, for example, product A can help B solve problem D in situation C.

2. Test users who have visited the website.
Firstly, we create a group of audiences and name them separately. We test each of these audiences with the same ad material. After 24 hours, we will get a set of data that contains the number of clicks, the number of single clicks displayed, and the number of thousands of clicks displayed. Then we can find out the group of audience with the best click-through rate. Use Facebook's Similar Audience feature to expand this group of audiences with the best performance. Finally, place the same ad material for similar audiences. Repeat the above test method for the next week. Specifically, define the website traffic audience once a day, test the audience, find the audience that works best that day, and do s similar audience expansion. This way the precise audience can be defined very clearly over the week.

3. Target interactive audience.
There are several types of interactive audiences on Facebook: audiences who have watched videos, audiences who have used Facebook applications, and audiences who have filled out lead forms. This time we will focus on the video audience. First, we need videos, if you do not have ready-made video material, you can make some advertising videos of your products by transforming the PPT into a video.
Test the website traffic’s audiences. Firstly, find a bunch of interests and create more than 5 groups of ads with the prepared video. After running the ads for a week, you will have 5 different groups of video audiences. And test these audiences with the above method in the second part. Test the audience, find the audience that works best that day, and do a similar audience expansion. In short, we do video advertising for two main reasons, one is that the cost of video advertising is much lower than posting, and the other is that it can have the effect of expanding the audience.
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4. Customer data for ads placement.
It is mainly about re-marketing to your audience. If the uploaded customer data is very precise, it will be very effective to get customers to interact with your ads. On the one hand, the advantage is these users who already know your brand are more likely to like your page and interact more with the content you publish in the future. On the other hand, the disadvantage is, the advertisements placed cannot be shown to new users. However, if you interact frequently with your fans, you can take advantage of these familiar users to spread your products and promote word of mouth.

In conclusion, if you are an e-commerce business, you can make more use of this way to interact more with them and lead them to make a second purchase or word-of-mouth publicity. For example, you sell products on Amazon with some customer profiles. You can upload the customer profiles to Facebook and use those customers as audiences for your data resource. The data you upload is already your precise customers because they may have already bought your stuff. So it will be more effective for you to advertise and re-market to them once again.