Step 1: Go to PrintHigh Order Management Center: https://seller.printhigh.com/order. Click to create a Manual Order.
Step 2: Choose Catalog, Add Design and Variants
Design link: You can use direct website link or Google Drive link, no more than 20MB. Recommended File Size: 4200×4800px – 300 DPI.
Base cost: https://printhigh.com/base-cost/
Basic Products: https://printhigh.com/product-category/budget-friendly/
Premium Products: https://printhigh.com/product-category/premium/