Generate an Shopify API key: In your Shopify backend go to: Settings → Apps and Sales Channels → click on Develop apps → Allow custom app development → click on Create an app → add an app name e.g. Sovendus Leads → click on Configure Admin API scopes → select write_customers and click on save → click on Install app and then on Install → in the section Admin API access token click on Reveal token once and copy the API key.
Send the Newsletter System name, the Shopify API key and the leadthing api key to Sovendus
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