Instead of focusing on cost optimization, e-commerce marketers frequently focus on rising revenue and traffic. However, it's best to start thinking about lowering your CPA right away. You won't have to think about increasing conversions later if you do it this way. Reduced CPA would have a positive effect on your ROI and raise it in a short period of time. Here are a few ideas for lowering your CPA.
Optimize the landing page of your website or campaign: When consumers click on your ad, the first thing they see is your website or the same landing page you're using for your Ads.
Inspire interest in your audience: A little bit of inquisitiveness can go a long way. Don't show too much; just enough of your offer to persuade people.
Make an emotional connection with your customers: Make your copy more emotional by getting imaginative. It'll make a huge difference.
Make the check-out process more effective. Customers abandon their shopping carts at the last minute due to technical glitches encountered during billing or other secret charges that they were unaware of. Billing should be easy, and consumers should have a nice shopping experience on your website.