Application program interface for message routing and management system

Apparatus comprising:

• a messaging application program interface (API) comprising a message and designation receive mechanism to receive, from remote enterprise applications via a network connection, messages and corresponding designations, individual ones of the corresponding designations comprising destination information identifying (i) a set of multiple human recipients and (ii) different modalities for transmitting the messages to respective ones of the multiple human recipients;
• the message and designation receive mechanism being configured to receive the messages and the corresponding designations from plural sender computers, wherein each of the plural sender computers comprises a message compose mechanism to compose at least one of the messages and compose at least one of the corresponding designations;
• the API further comprising a messaging facility direction mechanism to direct a messaging facility to effect transmission of each of the messages to their corresponding destinations in accordance with their corresponding designations.