Disclosed herein are method, system and device embodiments for setting up a graphical user interface (GUI) for a commerce architecture. An embodiment operates by providing a GUI that displays a first button for adding a first data source and a second button for adding a second data source, the second data source being related to the first data source, receiving a first response via the first button to add the first data source and a second response via the second button to add the second data source, providing a view of a first data schema and a second data schema, wherein the first data schema includes at least one object from the first or the second data source, and wherein the second data schema is a canonical data model, mapping the at least one object of the first data schema to at least one object of the second data schema, and providing a single entity view of the at least one object of the second data schema.