Consistent interface for opportunity

A distributed system operating in a landscape of computer systems providing message-based services defined in a service registry, the system comprising:

• a graphical user interface comprising computer readable instructions, embedded on tangible media, for requesting replication of opportunity data, including business transaction information and identification of parties involved in a prospective business transaction, the instructions using a request;
• a first memory storing a user interface controller for processing the request and involving a message including a message package hierarchically organized as:
• an opportunity replication request message entity;
• and
• an opportunity package including an opportunity entity, wherein the opportunity entity includes an identifier, a processing type code and a process status valid since date;
• and wherein the opportunity entity includes a status entity from a status package;
• and
• a second memory, remote from the graphical user interface, storing a plurality of service interfaces, wherein one of the service interfaces is operable to process the message via the service interface.