I am looking for a solution in Shopify or via an 3rd party app to send custom marketing email based on product variant purchased. Better if it offers a free plan.
So far I can only find solutions to send custom emails based on a specific product order, but not to variant level.
Have installed Shopsync but so far didn't find this option available
Can you please clarify what you mean by custom product variant purchased email.
I suggest go for MailChimp free plan and sync MailChimp with shopsync.
Feel free to email me on my email
Mailchimp can do what you need i feel.
For me each variant is also a product correct ?
Example body butters - have different fragrances like - vanilla, starwberry etc so if a customer orders body butter vanilla flavor then mailchimp can send that email.