In this video, I review the issue of missing attribution for Shopify stores that are using Slide Role Analytics to send data to Google Analytics. Specifically, I address the high percentage of not set attribution on session source and default channel grouping. I explain the difference between direct purchases and purchases with no session source. I provide steps to create an exploration and import dimensions to identify the source of the issue. I also discuss the significance of Shopify source and Slide Rule identified. If the issue persists, I instruct viewers to export the reports and contact us for further assistance.