What this category's data looks like
Materials for the laboratory hazardous chemicals procurement and ledger category commonly include three types: procurement applications, usage registrations, and inventory ledgers. Fields include product name, specification, quantity, date, handler and approval signatures, and receipt number. Material sources are mostly scanned paper documents, spreadsheet exports, and system receipts, and the update cadence changes with batch procurement and daily usage. When entering the knowledge base retrieval node, procurement applications serve the role of source traceability, usage registrations serve the role of consumption and destination verification, and inventory ledgers serve the role of balance and version comparison. After materials enter this function, they are first split into paragraphs, then the retrieval node matches them by question and outputs an array of cited content, each item containing the original text fragment and source identifier, and the length can be 0. Subsequent AI nodes, code nodes, or humans then compare fields, write ledgers, generate reports, and form a handover-ready deployment state and operation record.
Configuration and implementation checks
This step is executed by the citation output of the knowledge base retrieval node, which outputs an array of cited content, each item containing the original text fragment and source identifier, and the length can be 0. The handover-ready deployment state and operation record are then completed by subsequent AI nodes, code nodes, or humans.
| Object | Check | Verification action |
|---|---|---|
| Procurement application | Whether the product name, specification, quantity, application date, and approval signature correspond to the receipt | Open the citation marker to point back to the original document paragraph, verify the fields and signature item by item, and record the number of citations in responseData (non-streaming module results returned with detailed output enabled) |
| Usage registration | Whether the recipient, issued quantity, issue date, and the deduction record in the inventory ledger are consistent | Check the cited fragment against the source document, verify the name and quantity, and record the array length separately |
| Inventory ledger | Whether the balance quantity and version date are synchronized with both the procurement and usage materials | Verify the source identifier and original paragraph in quoteList, and confirm which material prevails when the version is not synchronized |
| Search parameters | Whether the values are consistent with the settings in the knowledge base retrieval section | Open the search parameters panel and verify item by item; when the citation limit is involved, verify the tokens of the cited text, and quoteMaxToken is only used as a content budget |
Three common errors
- Symptom: The name, quantity, and date of the same batch of hazardous chemicals do not match across two materials. Cause: Procurement applications and usage registrations were not grouped under the same batch number, and the field definitions differ.
- Symptom: The inventory ledger version is not synchronized with the procurement receipt. Cause: The receipt did not enter the knowledge base in time, and the retrieval still hits the old version paragraph.
- Symptom: The usage registration lacks a signature or receipt. Cause: During handover, only the quantity was checked and the signature field was not checked, so the cited fragment cannot point back to the complete approval chain.
How to verify the setup
Acceptance for this function: ask a question with documentary evidence, and verify whether the citation array and markers can point back to the original text; then ask a question with no matching material, and confirm that the array is empty while the pipeline still runs.
Business test: verify once item by item according to the handover form, and see which record is missing.
- Open the citation markers in the conversation, point back to the original document paragraphs one by one against the source document, and record the array length.
- Run a test with a question that has no matching material, confirm that the output is empty while the pipeline continues, and verify the values of
quoteMaxTokenandquoteList.