In order to maintain and ensure a successful search engine optimization campaign, you must follow some useful tips for your eCommerce store.

• Write original content - although not a total crime if some content 
• Meta tag keywords should be unique for all the pages.
• For the product page meta description, add the same product description that displays on the product page. This will show unique content on every product page and can prevent from duplicate content penalties.
• Use the company name in the title - so when people are looking for your website, they will see you immediately
• Create a SEO keyword field for the title tags, meta tags and the body which can help to increase product page rank and add normally search for keywords in these fields.
• Allow customers to review and comment on the products that has been purchased and to tag products with their own keywords - constant updating does wonders for SEO.
• Create product feed and submit it to the google base, which shows the result in google product searches.
• Use keyword rich page file names.
• Create optimized landing page for every brand, if your website sells branded products.
• Use suitable title attributes for all anchor text on your site, this gives search engines more information about what the page contains.