What the documents look like
For document comparison in Amazon FBM fulfillment, this page examines FastGPT context limits. Accessory replacement requires main-unit verification, while an address change needs its own confirmation. The examples are hypothetical.
Constraints at the context limits step
A proposed FBM clause requires checking the main-unit model before sending a replacement accessory, with separate confirmation for an address change. A service remark says red version, as before; conversation history concerns another model. A question about proceeding as before needs both conditions preserved. Red is a colour description, with no evidence here that it uniquely identifies a model. As before also lacks an explicit address or arrangement reference. Conversational shorthand cannot replace confirmation, and the comparison must not invent recipient information that the source packet never supplied.
Configuration and implementation checks
| Context review subject | Specific text condition | Acceptance evidence |
|---|---|---|
| Model evidence | Red does not establish a unique model | Check actual main-unit subject. |
| Replacement condition | Main-unit verification first | Retain prerequisite action. |
| Address condition | Changes separately confirmed | Inspect citation truncation. |
| Historical subject | Discussion of another model | Check whether that entity transfers into the answer. |
| Aftersales handoff | Main unit, accessory and pending confirmation | Check paired relationships and parsing. |
Documented conditions
| Documented item / implementation check | Condition |
|---|---|
Model context | Use the actual model’s accepted context scope. |
Reply length | The reply limit differs from the context window. |
Knowledge-reference limit | Knowledge citation limits are token-based. |
History-input check | Compare empty-history and populated-history inputs. |
Structured-output handoff | Validate parsing, then inspect support for field values. |
Three common errors
One failure is the historical model entering the current answer and red version being assigned to it automatically. Another is the address-change condition being trimmed while as before becomes confirmed address. Retain current main-unit identity, historical subject and the missing condition to distinguish entity confusion from input loss. Check actual model context capacity and leave enough reply space for conditions and follow-up. More history does not necessarily add applicable evidence; it may introduce another subject, so an empty-history comparison is needed to locate its influence. A third error marks model verification complete from red alone. Inspect a traceable colour-to-model relationship in the available material. Matching colour does not establish unique identity and cannot complete the replacement prerequisite without that mapping.
How to verify the setup
Acceptance should separately ask for model evidence, the prerequisite for accessory replacement and address status. The answer should retain that colour alone does not identify the model and that as before has no clear reference in this fixture. If fixed output supports aftersales handoff, check paired main-unit and accessory subjects, unresolved confirmations and actual parsing. Repeating the question with another model in history must not silently replace the current subject. Later model confirmation still cannot establish address confirmation; each item needs its own evidenced scope.
| Material context | Scope |
|---|---|
| Document types | Order Picking List, Shipment Confirmation, Return Address Settings and Logistics Tracking Sheet |
| Candidate sources | Amazon Seller Central, Carrier System, ERP Orders and Customer Service Email |
| Technical baseline | FastGPT v4.17.2 |