S/4HANA Custom Development - What happens in case of errors in BAPIs or RAP BOs?

A Devtoberfest 2026 session on what a custom S/4HANA process does when a BAPI or a RAP business object fails. It is framed from project work rather than product development, with the same issues and challenges turning up on project after project, and it offers the ABAP Processing Center, ABAP-PRCABAP-PRCpackageA framework for custom multi-step ABAP processes: a process class declares the states, and the framework runs each document through them and monitors the run.independent, abap, as what fills the gap it names in modern ABAP development. The edges rest on the opening, which states the session's subject as errors in S/4HANA custom development, read as error handlingError handlingcapabilityTurning a failure into a response a client can act on — protocol-correct error payloads, correlation, and a boundary between internal detail and what a caller sees.SAP and community, unassessed on the ABAP door, and names that framework.