How do I merge my Rocket League progress and items between accounts?

When you link platforms to an Epic Games Account, you have access to all the items on those platforms. For example, when you link your Steam platform to your Epic Games Account you will have access to all items on both accounts. For more info, check out: How do I get my Fortnite, Fall Guys, or Rocket League progress to sync across all of my devices?

Merging levels, challenges, or inventory from two accounts of the same platform is not possible. For example, you cannot merge PlayStation account A to PlayStation account B. Only one account from a platform can be linked to an Epic account.