What the documents look like
For after-sales questions in Certificates of origin, this page examines FastGPT retrieval. Keep draft certificates, client receipt and actual issuance records distinct in aftercare retrieval. The examples are hypothetical.
Constraints at the retrieval step
A proposed origin-document support packet reports a downloaded draft, a client receiving that draft and a mailing request awaiting the formal document. The question asks whether a certificate is issued. Download and receipt concern a draft, and the request supplies no formal item. Retrieve draft identity with every passage rather than treating received as issuance. Compare formal-document, draft-download and full-issuance questions for interference from older certificates. This exercise determines no origin eligibility or actual filing requirement and establishes no real current certificate outcome from the proposed messages alone.
Configuration and implementation checks
| Material check | Conditions in this test | Implementation evidence |
|---|---|---|
| Document stage | Draft | Retain in reference. |
| Question target | Issuance versus receipt | Compare rewritten task. |
| Mailing gap | Awaiting formal item | Do not make sent. |
| Certificate attribution | Product and batch | Inspect actual source. |
| Added formal record | Current version | Update supported facts only. |
Documented conditions
| Documented item / implementation check | Condition |
|---|---|
Associated knowledge bases | Knowledge bases associated with one search node must use the same embedding model. |
Search mode | Semantic, full-text and hybrid modes are available. |
Citation limit | Citation limits are measured in tokens. |
Minimum relevance | Range 0–1; active for semantic search or reranking. |
Question optimization | Resolves references and expands questions. |
Three common errors
First, reference clipping may drop draft and announce certificate receipt; compare original and adopted text for document stage. Second, optimization may replace issued with client received; compare tasks because receipt answers no issuance question. Third, another batch’s certificate may be used here; inspect product, batch and source identity. These concern document state, question target and applicability. Several receipt passages or a highly ranked certificate page do not establish a formal current result without the appropriate version and object actually supplied for this case.
How to verify the setup
Ask what was downloaded, what the client received and what the mailing request lacks, inspecting actual references. Compare semantic, full-text and hybrid modes on the same questions for draft and awaiting wording. Token budgets must preserve those qualifiers rather than leave downloaded or received alone. Added formal records need current product and version checks without borrowing an older certificate. Failure to retrieve the formal document does not establish that the application was refused. This exercise performs no issuance or mailing and claims no real obtained certificate or approved eligibility from the hypothetical text relationship.
| Material context | Scope |
|---|---|
| Document types | Certificate of Origin Application, Commercial Invoice, Packing List and Production Cost Data |
| Candidate sources | China International Trade Single Window, CCPIT System, Enterprise Production Records and Customer Customs Clearance Requirements |
| Technical baseline | FastGPT v4.17.2 |