What the documents look like
For multilingual work in Letter-of-credit documents, this page examines FastGPT vector indexes. Letter-of-credit material needs checking notes separated from bank decisions and payment outcomes. The examples are hypothetical.
Constraints at the vector indexes step
A proposed letter-of-credit preparation note leaves document names for the business party’s checking. Its English attachment calls this a document-name query and supplies no bank decision. A question about bank acceptance has evidence of an unresolved naming issue, not a decision body. Indexes for document-name checking or a missing decision attachment can map to the material without calling it proof of bank acceptance. Checking here does not identify a completed institutional review, and a letter-of-credit folder name establishes no payment stage or financial outcome.
Configuration and implementation checks
| Material check | Conditions in this test | Implementation evidence |
|---|---|---|
| Check nature | Query for checking | Do not replace with accepted. |
| Attachment gap | Decision absent | Do not infer refusal. |
| Transaction identity | Current transaction | Check comment object. |
| Original version | Current note | Do not borrow old comments. |
| Outcome scope | No payment evidence | Do not predict the actual outcome. |
Documented conditions
| Documented item / implementation check | Condition |
|---|---|
Embedding model | Knowledge bases associated with one search node must use the same embedding model. |
Original data and indexes | One original data block can have multiple indexes. |
Index content | Index wording should be complete and focused. |
Image indexes | Where image retrieval is used, inspect descriptions or image vectors. |
Version and result check | After a change, reuse questions to compare originals. |
Three common errors
First, an index may change checking into accepted; inspect the query wording and decision attachment for an added result. Second, no decision attached may become bank refusal; preserve the limited attachment gap instead of replacing it with a negative decision. Third, another transaction’s bank comments may map to this case; inspect transaction identity, comment object and original version rather than join evidence through the same bank name. These concern stage, missing-evidence meaning and transaction ownership. Ordinary preparation notes provide no actual financial decision merely through terminology or semantic similarity.
How to verify the setup
Ask what needs checking, whether decision material is present and which transaction it concerns, retaining actual returned indexes and originals. Several indexes for one note remain one query record, not independent review conclusions. Inspect embedding-model conditions for bases associated with the same retrieval node separately. This exercise processes no credit, gives no financial compliance advice and predicts no payment. Failure to retrieve a decision establishes neither refusal nor that no decision was made. Add independent evidence for this transaction and inspect its body before extending the answer to the stage explicitly documented.
| Material context | Scope |
|---|---|
| Document types | Letter of Credit, Commercial Invoice, Bill of Lading, Insurance Policy and Bill of Exchange |
| Candidate sources | Issuing Bank Notice, UCP600 Clauses, Freight Forwarder Bill of Lading and Bank Document Submission Records |
| Technical baseline | FastGPT v4.17.2 |