Abstract: A method and system for custom action creation in automation workflows is disclosed. In some embodiments, the method includes receiving a request for creating an application extension from a user, the application extension including at least one custom action. The method includes determining, using one or more trained artificial intelligence (AI) models, one or more existing application extensions and associated parameters from a plurality of connected applications. The method also includes generating one or more first graphical interfaces to present a recommendation to the user, the recommendation including the one or more existing application extensions and associated parameters. The method further includes receiving a selection of the recommendation from the user and, in response to receiving the selection, creating the application extension based at least on the recommended parameters.