An administrator in Account A has created an AWS Service Catalog portfolio and shared it with a different administrator in Account B. What action can the Account B administrator perform on the shared portfolio?

When an AWS Service Catalog portfolio is shared from Account A to Account B, the Account B administrator gains the ability to use the products within that shared portfolio. The primary action they can perform is to add products from the imported portfolio into a new local portfolio within Account B. This allows Account B to curate its own set of offerings, combining shared products with its own. Account B cannot directly modify the shared portfolio itself, including adding new products, altering IAM launch roles, or modifying product templates, as these actions would require ownership permissions that remain with Account A.