A purchasing method and system. The method includes purchasing method comprising generating by said computing system a database table. The database table comprises catalog purchase types for items available for purchase. An entity profile associated with an entity is generated. The entity profile is associated with entity allowable catalog purchase types selected from the available catalog purchase types in the database table. A catalog profile is generated. The catalog profile is associated with the entity profile. A user profile associated with the entity profile is generated. The user profile is associated with the entity allowable catalog purchase types. Specified catalogs are identified and presented to a user. The user profile is comprised of a default purchase type and additional user related details. The specified catalogs are associated with the default purchase type, the user profile, the entity profile, and the catalog profile.