VC stands for Vendor Central, which is a tool for Amazon sellers that helps them manage their accounts, report on sales and inventory, and connect with other Amazon sellers.

Amazon Vendor Central is primarily for first-party (1P) seller, who are typically manufacturers and distributors. VC sellers sell their item(s) in bulk to Amazon, who at that point goes about as a distributor for that vendor. Then Amazon will sell those products to consumers.

To become a Vendor Central seller, you need to be invited by Amazon vendor management.