You are supporting a daily cash posting pipeline used by a financial analyst team to reconcile posted cash against the general ledger. The process receives one or more source files each business day, loads them into a staging area, applies validation, and publishes a final posting table for reporting. The main concern is operational, the team needs to know quickly when a file is missing, a load fails, or the same file is processed twice.
How would you monitor a daily cash posting process for failures or missing files?