I have taken training that has suggested that I should always use the "purchase" objective. However, I have also done my own research, My research has lead me to beleive that I should first start with "view content". That would provide add to carts. Then move to the "add to cart" objective, which would provide purchase data. Then the end result would be to choose the "purchase" objective. Which method would you guys suggest?
Not directly related to your question but, Facebook marketing can be tricky if you don't niche down your customer segments. You can easily burn your pockets if the ads are not targeting your customer audience. If you already have customer emails (or) leads I would suggest to try out this app(there's a free credit on it) to get your customer interests https://apps.shopify.com/customer-insights. Once you know your customer interests then you can segment them appropriately on facebook ad campaign (or) even send the emails out appropriately based on their interests. This can help you to target similar audience.
For a new store which has just started, the campaign objective that will suit you is Post Engagement or Traffic.
This campaign will help you in two ways :-
1) People will engage with your content and ultimately come to know your brand. You can retarget people who come to your blog / website from these posts with the help of Facebook pixel that you've placed on your website.
2) Such ads lead to an increase in the number of followers as well. Followers are an aggregated audience that you'll continue to have access to. Every now and then, along with interesting content, you can market your products and discounts.
Allow these campaigns to run for some time. Meanwhile you will get more and more clicks and traffic. This allows facebook to learn more and more about the people who are going to convert. Once you have a signficant audience of people who have engaged with your posts or page, then you can run conversion ads (add to cart/sales) etc. This will maximize your conversion at a lower cost.
I had a look at your social pages. Currently you post product images / link. On social media, you compete for your users attention. To get that attention through your posts, use OrangeTwig. You'll be able to promote your products / discounts in very creative and professionally designed layouts. Try it for FREE here.
Hope that helps
Orangetwig :- Drive traffic to your social media