What the documents look like
Trade returns and claims work handles reverse logistics and liability determination after goods have left the country. The core materials are the return agreement, the claim letter, the quality report, and the return customs declaration. Their sources include customer email, inspection reports, customs systems, and insurer claim systems. In store service and internal training, citation tracing means that every outward statement or internal handover judgment can be pointed back to specific wording in a specific document. Updates are irregular and case by case, so the same set of materials may pass through several revisions before a case closes.
A return agreement may record a batch scope and a return reason. A claim letter may state a damage cause and a compensation demand. A quality report may state an inspection conclusion. These three can disagree, and the disagreement matters more than the general similarity of the topic. The task here is to check whether a drafted sentence or handover request is supported by the wording actually present in the named source material.
Constraints at the citation tracing step
The knowledge base search node selects one or more knowledge bases that share the same vector model, and outputs a citation array whose length may be zero. A zero-length array means the search path ran through without a hit; it does not mean the workflow terminated with an error. The minimum relevance value is a filter threshold and takes effect only under semantic retrieval or result re-ranking. It does not perform permission filtering or entity isolation. The retrieval scope is set by the selected knowledge bases, and the retrieval action itself does not grant any authorization.
Assumed paper exercise sample. A store receives a draft return agreement whose text reads: "Party A agrees to accept the return of the March 2024 batch from Party B, and the return reason is subject to the quality report confirmed by both parties." In the same material set, a draft claim letter reads: "The goods were damaged due to packaging breakage, and full compensation is demanded." An internal handover request reads: "Please arrange the follow-up return declaration according to the above return agreement, and submit the claim letter to the insurer at the same time." All parties, objects, and statuses above are fictional and are used only for checking on this page.
Two constraints follow from the sample. The draft agreement states agreement to accept, and it does not state a signature status. The handover request refers to the agreement and does not state that the agreement is signed, does not state an authorization scope, and does not state an effective date. Both remain conditional.
Configuration and implementation checks
| Configuration item | Use on this page | How to check |
|---|---|---|
| Associated knowledge bases | Limit to the bases holding the return agreement, claim letter, quality report, and return customs declaration | Compare the selected base identifiers and confirm the vector model matches; exclude any base that does not match |
| Search mode | Use full-text or hybrid retrieval for batch numbers and document numbers | Compare recalled content against the batch number in the sample |
| Minimum relevance | Filter low-relevance fragments | For this exercise, start at 0.5 because the sample question has a clear subject; compare against 0.3 and 0.7 and observe recall changes |
| Citation limit | Control the token amount cited in one search | For this exercise, start at 2000 tokens; compare against 1000 and 4000 and observe citation completeness |
| Citation content output | Carry the citation array into the answering step | Check that each answer sentence corresponds to source wording item by item |
| Result re-ranking | Secondary ordering when candidates are numerous | Confirm a re-ranking model is configured and enabled before comparing scores |
The two numeric starting values above are exercise starting points chosen for this page, with the stated reasons and comparison values. They are not official defaults.
Three common errors
- Treating a retrieval hit as an authorization basis. The sample return agreement states that Party A agrees to accept, and it does not record a signature status. Reading that sentence as proof that the return is approved treats a pending document as an effective authorization.
- Treating an empty citation array as an error. The search node output length may be zero, and an empty array passes through the downstream path. Training staff to declare a system fault whenever an empty result appears misdirects the operation.
- Replacing source checking with semantic similarity. The sample claim letter states packaging breakage. If the quality report states only an appearance abnormality, the two same-field values differ, and the claim wording is not supported. Semantic closeness does not make them consistent.
How to verify the setup
- Input the sample return agreement text and the drafted sentence "the return reason has been confirmed by both parties as packaging breakage." Compare whether the quality report text records packaging breakage as the reason. If the quality report states only an appearance abnormality or does not state a reason, the drafted sentence is not supported and the evidence gap is recorded.
- Input the internal handover request "please arrange the return declaration according to the return agreement." Compare whether the request states that the agreement is signed, states an authorization scope, and states an effective date. If none of these is stated, the handover request remains in a pending-authorization state, and the declaration action is not executed.
- Input the sample claim letter draft and the quality report, and compare whether the two statements about the cause of cargo damage are mutually exclusive values in the same field. If the claim letter states packaging breakage and the quality report states transport vibration, the two conflict and the case returns for verification. If the quality report does not state a cause, the claim wording is not supported.
For each check, what is observed is the wording present in the named source and the wording of the drafted sentence or request. Failure branches are recorded as an evidence gap, an unsupported statement, or a pending authorization, and they are not converted into a confirmed approval, a completed termination, or an executed declaration.