You’ve tested mockups and found your low CPC winner. Then the grind begins: applying a design graphic to every mockup color for each product, uploading and assigning every variant image by hand. PrntFlow turns that workflow into a reusable template. Add your winning mockup images, map color variants, and set design placement once. For each new design, upload the graphic and PrntFlow applies it to every color mockup, then uploads and assigns the images to each color variant in Shopify.