What the Data for This Category Looks Like
Data sources for chemical raw materials include public customs import and export ledgers, monthly supply and demand reports from industry associations, MSDS documents published by manufacturers, quotation data from spot trading platforms, and third-party quality inspection reports. Update rhythms vary by type: spot price data updates daily, industry supply and demand reports are released monthly, and product compliance documents are only updated when formulas or production processes are adjusted.
Document structures include structured fields and semi-structured analysis content. Structured fields include CAS registry number, molecular weight, purity percentage, melting point temperature, spot quotation unit, and similar items. Semi-structured content includes capacity change notes, compliance risk reminders, and upstream and downstream associated enterprise information. Some scenarios also include unstructured materials such as product photos and scanned copies of quality inspection reports.
What Constraints Do These Characteristics Impose on Workflow Orchestration?
Multi-source heterogeneous data sources require workflow configurations with multi-format adaptation nodes to handle structured tables, PDF reports, and image materials respectively. Scenarios with a high proportion of unstructured materials need to embed visual analysis nodes to complete image transcoding and content extraction.
Differences in update rhythms across data sources require configuring scheduled scheduling rules differentiated by data source type to avoid invalid repeated pulls. Fixed units for structured fields require built-in field verification logic in the workflow to automatically correct input data with mismatched units. Large single-batch data volumes from customs ledgers or quotation lists can easily trigger AI context length limits, requiring configured segment parsing and result aggregation nodes.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
maxContext | 8000–16000 characters | The total of structured fields and semi-structured analysis content for chemical raw material due diligence reports usually falls within this range, and can adapt to the context limits of most mainstream models |
UPLOAD_FILE_MAX_SIZE | 200 MB | Covers the typical volume of single customs ledgers, monthly industry reports, and batches of quality inspection images, to avoid upload failures |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Adapts to the parsing time required for large-volume PDFs or batches of up to 20 images, to prevent premature termination of the parsing process |
Segment Length | 1000–1200 characters | Splits long text into units that comply with model input limits, reducing the risk of context overflow |
BASE64_ENCODE_AUTO | Enabled | Automatically converts uploaded image files to Base64 encoding to adapt to the input requirements of visual analysis nodes |
workflowApiAuthType | Key Verification | Ensures the security of API calls to the workflow, preventing unauthorized access from triggering data leaks |
The parameter values provided on this page are general recommendations used as a starting point for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis, and testing on local samples is recommended before finalizing settings.
Three Common Misconfigurations
- The workflow returns a context length exceeded error, with status code
413or the model returningprompt too long. This occurs because themaxContextparameter is not configured or its value is too small, and long text is not segmented for processing. - The visual analysis node returns an empty result, with the
base64_datafield being empty. This occurs because automatic Base64 transcoding configuration is not enabled, the uploaded image format is not supported, or a format verification node is not added. - API calls to the workflow return
400 Bad Requestwith the error promptmissing required field "file". This occurs because files are not uploaded in the required multipart/form-data format, or required parameters for triggering the workflow are not correctly included.
How to Verify Proper Configuration
- Upload a typical chemical raw material quality inspection report PDF, verify that
UPLOAD_FILE_MAX_SIZEpermits upload of the file, and confirm that segmented text matches theSegment Lengthconfiguration after parsing. - Upload a product photo, confirm that the workflow node automatically generates the
base64_datafield, and that the visual analysis node returns correct extracted image content. - Call the workflow API using test structured data and image files, check that the returned result includes complete due diligence report content, with no context overflow or missing parameter errors.
- Configure triggers based on data source update cycles, review scheduled task logs to confirm the workflow executes at the preset rhythm, with no repeated or missed triggers.
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.