What the data for this category looks like
Data for complete vehicle intelligent due diligence reports comes from four sources: official automaker announcements, Ministry of Industry and Information Technology (MIIT) motor vehicle product announcement platform, second-hand vehicle transaction databases, and vehicle registration management systems. Update rhythms vary across sources: automaker announcements release new model information quarterly, the MIIT catalog updates irregularly alongside model iterations, and second-hand vehicle transaction data syncs daily. Document structure balances structured fields and unstructured attachments. Structured fields include VIN, wheelbase, curb weight (unit: kg), battery capacity (unit: kWh), warranty period (unit: years/10,000 km), and more. Unstructured attachments include crash test reports, maintenance records, original factory configuration sheets, and more.
What constraints do these characteristics impose on workflow orchestration?
Differing update rhythms across multi-source data require workflows to support mixed triggering modes. Workflows must include both scheduled tasks to sync the MIIT catalog and automaker announcements, and manual triggers to pull real-time latest second-hand vehicle data. Structured fields may have inconsistent units. Some third-party data sources use imperial units, so a unit standardization processing node must be added to the workflow to prevent errors in subsequent analysis. VIN, as the unique identifier for complete vehicles, must be used as a global variable across the entire process to ensure accurate matching and association across different data sources. Unstructured attachments are generally large in size. Timeout and segmentation parameters must be adjusted during parsing to avoid premature task termination.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 300-600 seconds | Complete vehicle unstructured attachments such as crash test reports and maintenance records are usually lengthy, with longer parsing times than general documents |
global_variable | Bind VIN as the core global variable | VIN is the unique identifier for complete vehicles, used for information matching and association across data sources |
workflow_trigger_type | Scheduled trigger + manual trigger | Balances the quarterly update rhythm of the MIIT catalog and automaker announcements, as well as the real-time query demand for second-hand vehicle data |
field_matching_threshold | 0.85-0.95 | Complete vehicle fields have unit differences and expression variants, requiring a high matching degree to avoid invalid associations |
UPLOAD_FILE_MAX_SIZE | 500 MB | Attachments such as original factory configuration sheets and complete maintenance records are large in size, so upload limits need to be relaxed |
api_key_scope | Only for workflow node calls | Restricts the scope of key usage to reduce the risk of key leakage |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on applicable samples before finalizing settings.
Three common errors
- Symptom: Workflow calls return
Key is error. You need to use the app key rather than the account key. Cause: The workflow configuration uses an account-level key by mistake instead of an application-level key. - Symptom: Using the
Specified Replynode in the workflow to output HTML code results in no display, and the workflow proceeds directly to the next node. Cause: The HTML rendering allow configuration for the node is not enabled, so output content is escaped to plain text by default. - Symptom: In FastGPT 4.9.10, only two global variables are displayed when entering the workflow list page. Cause: The editing page of the corresponding workflow is not entered. The global variable list only displays variables bound to the current workflow, not platform-wide universal variables.
How to confirm correct configuration
- Trigger a workflow test case, check whether the fields returned by the data pull node include core configuration items such as VIN and curb weight, and verify that field units are unified.
- Run a test branch containing the
Specified Replynode, check whether the output content renders HTML format normally with no escaped characters remaining. - View workflow running logs, confirm that the triggering method matches the configured scheduled or manual rules, and there are no timeout errors related to
PARSE_FILE_TIMEOUT_SECONDS. - Verify the binding scope of the API call key, confirm that it only allows workflow node calls, and there is no risk of cross-node misuse.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.