What the documents look like
Parcel label and carrier handoff work happens at the point where a parcel leaves the warehouse. Responsibility at that point is tracked through carrier scans. For store service and internal training, the material that staff need to retrieve falls into four groups: electronic waybills, handoff manifests, pickup scan records, and exception parcel registrations. These materials update per batch and per day, and the retrieval requests usually come from store staff asking about handoff status or how an exception should be handled.
Three facts shape this page. First, responsibility judgment depends on the carrier scan node. A retrieved scan record shows that a record existed at a certain time; it does not by itself establish who bears responsibility for a lost parcel. Second, the handoff manifest and the pickup scan record live in different systems, so the same parcel can sit at different stages in the two materials. Retrieval results must be compared by the same subject, the same period, and the same field. Third, an exception parcel registration is filled in by a person. The registered content reflects the description at the time of filing; it does not mean the matter has been resolved or that any authorization has been granted.
A retrieval result is not an authorization. A pending registration is not a completed handling. An offered option is not an executed action. These distinctions matter because store staff may read a retrieved sentence as if it carried business authority.
Constraints at the retrieval step
Knowledge base search runs against the whole library; a collection is only a way to organize data and does not affect search results. Linked knowledge bases must use the same vector model, and libraries with different vector models cannot be linked together. Semantic retrieval, full-text retrieval, and hybrid retrieval are selected through the search mode. Precise queries such as tracking numbers and model numbers suit full-text or hybrid retrieval. The minimum relevance value takes effect only under semantic retrieval or when result re-ranking is used; it is a filter threshold and does not perform permission or entity isolation. The citation limit is measured in tokens, and when long and short materials are mixed, a token-based limit is more stable than top k. Question optimization performs coreference resolution and question expansion, and it adds an extra model call. The output citation content is an array whose length can be zero; when nothing is retrieved, the output path still completes.
A hypothetical paper exercise sample. Material text for comparison: a store's handoff manifest dated 12 March 2025 states "Tracking number SF-TEST-0001, status: handed off to carrier." The pickup scan record for the same day states "Tracking number SF-TEST-0001, scan time 18:40, scan result: picked up." The exception parcel registration for the same day states "Tracking number SF-TEST-0001, registered content: outer packaging damaged, awaiting branch confirmation." The draft sentence to be assessed: "Tracking number SF-TEST-0001 has been picked up by the carrier, and damage responsibility is borne by the carrier." The subject of this draft sentence is tracking number SF-TEST-0001, the object is pickup and damage responsibility, the status is awaiting branch confirmation, and the effective scope is limited to the registered content of 12 March 2025.
Configuration and implementation checks
| Configuration or check item | Hypothetical starting point for this exercise | Reason for the choice and comparison method |
|---|---|---|
| Linked knowledge base | Link only the same-vector-model library containing the four material groups above | First check each library's vector model identifier, exclude those that do not match, and do not run cross-model retrieval comparisons |
| Search mode | Use full-text retrieval for tracking-number questions and hybrid retrieval for natural-language questions | Run the same question under both modes and compare whether the tracking number is hit in the returned citation content |
| Citation limit | Set the hypothetical starting point for this exercise to 2000 tokens | Test whether citation content stays complete using waybills and registrations of different lengths, and compare with a 1000-token result |
| Minimum relevance | Set the hypothetical starting point for this exercise to 0.5 | Label relevant and irrelevant samples first, then observe whether irrelevant fragments are filtered at this threshold |
| Question optimization | Enable for multi-turn follow-up scenarios, disable for single-turn explicit questions | Compare the original question with the optimized question and check whether the subject has been altered |
| Output citation check | Check the downstream branch design against an empty result | Use the paper input [] to check whether the downstream handles it as an empty citation |
Three common errors
- Treating a pickup scan record as a responsibility conclusion. The scan record states a scan time and a scan result. Responsibility judgment requires confirmation material from both the carrier and the store, and a retrieval result does not constitute a responsibility conclusion.
- Reading "awaiting branch confirmation" in an exception parcel registration as completed handling or granted authorization. Awaiting confirmation is an incomplete state, and the registered content does not indicate that damage responsibility has been assigned.
- Treating a similarity score as a permission or entity filter. The minimum relevance value only filters low-relevance results; it does not exclude unrelated business or unauthorized records, and retrieval itself does not complete authorization.
How to verify the setup
- Input the draft sentence from the hypothetical sample together with the three material texts, and compare "damage responsibility is borne by the carrier" in the draft sentence with "awaiting branch confirmation" in the exception parcel registration. Observed result: the draft sentence exceeds what the materials support and should be marked as unsupported, not as contradictory.
- Input tracking number SF-TEST-0001 and observe the citation content under full-text retrieval and under hybrid retrieval separately. Compare whether both modes return the handoff manifest and the scan record. Observed result: the precise tracking-number query is hit under full-text retrieval, and the hybrid retrieval result needs checking for whether unrelated fragments were introduced.
- Input the paper empty citation [] and check the downstream branch design. Compare whether the downstream continues execution as an empty citation. Observed result: the output path completes and the citation length can be zero; do not claim that a fictional rule always returns an empty array.
These checks describe what to compare and what remains unknown. They do not assert that any test, deployment, approval, or business action has occurred.