Managing consistent interfaces for currency conversion and date and time business objects across heterogeneous systems

A non-transitory computer readable medium including program code for providing a message-based interface for exchanging information related to duplicate business partners, the medium comprising:

• program code for receiving via a message-based interface derived from a common business object model, where the common business object model includes business objects having relationships that enable derivation of message-based interfaces and message packages, the message-based interface exposing at least one service as defined in a service registry and from a heterogeneous application executing in an environment of computer systems providing message-based services, a first message for determining duplicate business partners based on given search criteria, search limitations, search results, and an indication of whether the search results match the context of a related consumer, that includes a first message package derived from the common business object model and hierarchically organized in memory as:
• a business partner duplicate check request message entity;
• and
• a business partner duplicate check package comprising a business partner duplicate check entity, a search criteria entity, a consumer context business partner business character entity, and a consumer context business partner type entity, where the business partner duplicate check entity includes a universally unique identifier, a result number value, and a result determined indicator;
• program code for processing the first message according to the hierarchical organization of the first message package, where processing the first message includes unpacking the first message package based on the common business object model;
• and
• program code for sending a second message to the heterogeneous application responsive to the first message, where the second message includes a second message package derived from the common business object model to provide consistent semantics with the first message package.