Karlie here from the Shopify Support Team! I'm sorry to hear you're having difficulties adding products to your store. Can you answer a few questions for me so I can dig into this for you?
Looking forward to hearing back from you!
Karlie here from the Shopify Support Team! There are a few troubleshooting steps that you can try to resolve the issue. I'll list them all in point-form below:
I hope this has answered your question. If not, or if you have any further questions please let me know. I will be happy to help!