# IA: Callout quote → POP → invoice → callout paid subject

**Batch:** 132 | **Source:** Marco Zeiss GH4285-MARCO-17/18 `1987a20ea7638294`

Pattern: Travel+Labour quotation → client POP → tax invoice on next stem → calendar `callout paid` subject is SoT. Booking date confirmed only after payment cleared (per quote boilerplate).