One assistant owns the comparison and result. Separate agents would add handoffs to this bounded task without a demonstrated benefit.
- A ChatGPT account with Work available on the web. Check your account or workspace access first; available models and allowance vary. Use the default model available to you. Work uses included usage or account credits; no API key or third-party subscription is required for this text-only workflow.
- A browser and text you are allowed to share with the service. Remove unnecessary private details. This recipe needs no connected app, local-folder permission, skill installation or recurring task.
- One human owner who can check the sources and make decisions. Transaction rows with IDs, dates, amounts and currencies; Receipt or invoice extracts with source IDs and document references; Accountant-approved document requirements and request deadline.
- Use an existing accounting-system missing-document report, capture app or one secure intake channel where those already solve the work. An assistant is only a proposed helper for varied descriptions and exception lists; it cannot make a client provide a missing receipt.