What the Data for This Category Looks Like
Documents involved in this category include payment applications, fund appropriation plans, invoices, contracts, acceptance documents, reimbursement approval forms, and payment vouchers. Data originates from the centralized national treasury payment system, unified budget management system, electronic invoice platform, and contract management system. The update frequency is daily. Document structures include fixed business fields such as budget indicators, economic classification, approval nodes, and amounts. Some documents are structured PDFs or table formats exported from systems.
What Constraints These Characteristics Impose on the Document Parsing and Chunking Link
Business documents have diverse types and contain structured fields. The parsing link must adapt to multiple formats including PDFs and tables, to avoid losing key business information such as budget indicators and economic classification. Documents are sourced from system exports, so their formats are relatively fixed but may include bulk multi-page attachments. Reasonable timeout and size limits must be configured. Compliance review for a single payment requires linking multiple documents. Chunking must retain business associations between documents, to avoid breaking the approval chain. Daily updated business data requires parsing efficiency to support high-frequency process guidance calls.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Business documents include short fields and long paragraphs. This range preserves the association logic between approval forms and corresponding invoices, avoiding split business chains from overly small chunks or lost field details from overly large chunks |
chunkSplitter | Split by paragraph + semantic chunking | Business documents have clear approval node paragraphs. Semantic chunking retains complete business information for the same approval stage, adapting to the context requirements of process guidance |
customPdfParse | Enabled | Documents in this category are mostly structured PDFs exported from systems. Enabling this option preserves original table layouts and field hierarchies, avoiding loss of key information such as budget indicators from default parsing logic |
PARSE_FILE_TIMEOUT_SECONDS | 120–180 seconds | Large payment vouchers may include multi-page contract attachments. This duration covers the parsing process for complex documents, preventing parsing failures due to timeout |
UPLOAD_FILE_MAX_SIZE | 500 MB | Some budget units upload bulk documents such as contracts and acceptance forms together. This size adapts to conventional bulk upload requirements |
chunkSettingMode | Manual mode | Adjustment of chunking parameters is required for different document types such as invoices and contracts. Manual mode accurately matches the association requirements of business fields |
Three Common Misconfigurations
- Symptom: Parsing error occurs after uploading a PDF, returning "parsing timed out" or 504 status code. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted. Parsing time for large payment voucher PDFs exceeds the default threshold. - Symptom: When calling the file collection creation API, the parsing result does not retain table fields within the PDF. Cause: The
customPdfParseparameter was not configured in the API request, and the system's default general parsing logic was used. - Symptom: Search results only return a single invoice, without linking the corresponding reimbursement approval form. Cause: The
chunkSizesetting is too small, splitting the approval form and invoice into separate chunks, breaking the business association logic.
How to Verify Correct Configuration
- Upload a single payment voucher PDF, check the parsed text content to confirm that key fields such as invoice numbers and budget indicators are not lost.
- Call the file collection creation API, verify that the request parameters include the correctly configured
customPdfParseitem. - Test retrieval of chunked documents, confirm that documents related to the same approval process (such as contracts and acceptance forms) are assigned to the same or adjacent chunks.
- Upload a document of the maximum allowed size, confirm that no timeout error occurs during parsing, and verify that the
PARSE_FILE_TIMEOUT_SECONDSconfiguration takes effect.
Reference only; verify against the target FastGPT release and deployment documentation.
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.