The Art of Tyler Lamph review for Printful: Print on Demand

The products are great but the integration is horrible. I have to upload a product multiple times before it'll say all sizes are in stock. For example, I'll upload a new t-shirt & it'll say all sizes are in stock besides Small. So I'll re-upload the product & it'll say all sizes are in stock besides Medium & 3XL. I have to do this over & over until it finally shows all sizes as "In stock". I've reached out to customer service & no one can find an answer or a resolution as to why this is happening.