A method for operational workflow transparency and end-to-end events tracking, the method includes at an event producer system, generating events, corresponding key business attributes, provider industry standard identifiers, patient identifiers, and patient information, and publishing the events and the key business attributes to a tracking system. At a tracking system, receiving and validating the events from the event producer system, generating a universally unique lexicographically sortable identifier (ULID) for an append-only log data structure for the respective event, generating a search index to enable search capabilities for the append-only log data structure, and temporally appending the respective event into the append-only log data structure for the corresponding prior-authorization case.