What the Data for This Category Looks Like
The business data for refined oil product sales comes primarily from gas station inventory ledgers, daily sales reports, VAT invoicing records, retail price public notices, and metrological verification reports. Each transaction triggers real-time data updates, with daily summary archiving. Most documents are structured tables, paired with limited compliance explanation text. Core fields include gas station code, oil product grade, sales volume (liters/ton), sales unit price (yuan/liter), payment time, and customer type. Units use liters, tons, yuan, and yuan/liter consistently.
Constraints on Citation and Traceability
High structured data volume and tight field associations require retaining key metadata such as gas station code and oil product grade during citation to prevent cross-category data confusion. Transaction records are fragmented and updated frequently. Knowledge base synchronization frequency must align with business update rhythms, otherwise traceability data will lag. Compliance documents must clearly reference document numbers and release times, so the traceability link must display complete metadata. When long documents like monthly sales reports are split, field context must be preserved to avoid citation errors from broken structured data.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
| Similarity Threshold | 0.6–0.7 | Matches the precise matching needs of refined oil product sales structured data, filters irrelevant non-business documents |
quoteMaxToken | 1200–1800 token | Covers the text length of a single daily sales report or invoicing voucher, ensures complete citation content |
| Single Recall Count | Top 3 entries | Reduces interference from excessive fragmented transaction records, focuses on core business documents |
detail | Enabled | Displays metadata such as gas station ID and oil product grade from cited documents, meets compliance traceability requirements |
responseData | Include original citation snippets | Enables direct verification of sales data values and time information |
| Chunk Overlap Length | 100–150 characters | Retains field associations across chunks, prevents structured data from being split and broken |
Three Common Errors
- Citation results appear empty in the interface, or returned matching content is unrelated to oil product sales. This occurs when the similarity threshold is set too low, filtering out low-relevance content or failing to match structured data for oil product sales.
- Some files in the knowledge base file list show a training exception status. This happens when the file contains unstructured handwritten scanned documents, or the field format does not comply with refined oil product sales ledger specifications, causing chunking failure.
- Citation content is accidentally truncated, with partial sales data or compliance instructions missing. This occurs when
quoteMaxTokenis set too small, failing to cover the complete business content of the target document.
How to Confirm Proper Configuration
The following actions can be used to verify configuration effects in FastGPT v4.17.0:
- Upload a single refined oil product sales daily report, initiate a document drafting request, and check if the returned citation includes the corresponding gas station code and sales volume values.
- View the citation metadata area, confirm the
detailconfiguration is enabled and displays the specific record ID or release time of the document. - Adjust
quoteMaxTokento different ranges, verify if the length of the citation content meets expectations. - Upload multiple oil product sales datasets with different grades, check if recall results are filtered by oil product category without cross-category confusion.
The values provided here are common starting points and should be evaluated against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.