POPSMASH can automatically add and update new contacts in Omnisend for your Shopify store.
POPSMASH automatically saves new subscribers to Omnisend & Shopify
When running a campaign to collect email subscribers, POPSMASH will always save new subscribers to Omnisend and to Shopify Customer profiles (creating or updating existing profiles as needed).
These newly created/updated Customer profiles will also have the 'accepts marketing' flag on so they will receive your email marketing communications.
How to set up the integration with Omnisend & Shopify
Once those two steps are completed, Omnisend will automatically receive new or updated subscribers from your POPSMASH campaigns.