What the data for this category looks like
Core steel trade data comes from steel mill ex-factory quotation systems, port warehouse management ledgers, purchase orders from downstream manufacturing enterprises, and road/rail logistics waybills. Data update cadence follows multiple tiers: Ex-factory unit prices update daily. Port inventory updates weekly. Downstream procurement demand updates monthly. Most documents use structured tables. Fields include steel product name, specification (units: millimeters, meters), origin, tax-included unit price (unit: yuan/ton), salable inventory stock, delivery lead time, and logistics delivery scope. Some documents include third-party quality inspection report attachments.
What constraints these characteristics impose on forms and interactions
Data sources are scattered, and update frequencies vary significantly. Forms must support dynamic binding to data sources with different timeliness. For example, the ex-factory unit price field must pull the latest daily quotation in real time. The downstream procurement demand field can be manually filled or bulk imported as needed. Fields have clear built-in units. Forms must enforce input format validation to prevent numerical entries without units or with incorrect units. Steel trade has frequent bulk procurement scenarios. Forms must support multi-row bulk entry, and associate validation against the remaining salable inventory for the corresponding specification. This prevents submitting orders with excess quantities. Logistics and delivery lead time data have strict timeliness requirements. Forms must automatically sync the latest delivery information before submission. This avoids order deviations caused by outdated information.
How to Configure the Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
form_field_unit_validate | Enable mandatory unit validation, bind preset unit enumerations to specified fields | Steel trade fields have clear unit requirements, to avoid invalid input |
workflow_default_value_source | Bind the daily_steel_price_api global variable as the default value for the unit price field | Ex-factory unit prices are updated daily, requiring real-time pulling of the latest data source |
batch_form_max_rows | 50 rows | Matches the entry scale of conventional bulk purchase orders in steel trade |
form_submit_precheck_trigger | Associate with the inventory remaining quantity query interface | Verify the salable inventory stock of the selected specification before submission, to prevent order over-submission |
form_field_required_rule | Bind the delivery lead time threshold of downstream orders to the delivery lead time field | Aligns with the production scheduling requirements of downstream manufacturing enterprises |
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 individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Symptom: The unit price field in the form appears empty after submission, or the workflow cannot read the unit price value submitted via the form. Cause: The
workflow_default_value_sourceconfiguration is not bound to the correct global data source interface, or the variable scope does not cover the current form node. - Symptom: A
413 Request Entity Too Largeerror is triggered when submitting forms in bulk. Cause: Thebatch_form_max_rowsconfiguration is not adjusted, and the number of rows submitted in a single attempt exceeds the system default limit. - Symptom: The form unit validation prompt does not take effect, and submissions are still allowed with non-standard units such as
yuan/kilogram. Cause: Theform_field_unit_validateconfiguration is not enabled, or the correct unit enumeration values are not specified for the corresponding fields.
How to Confirm the Configuration is Complete
- Enter the form editing interface, select the unit price field, check if the global data source variable is already associated. After submission, view the workflow log to confirm that the field value can be read correctly.
- Try entering a numerical value that does not match the specified unit, check if the corresponding validation prompt is triggered, and confirm that the validation rule is active.
- Bulk enter entries that exceed the conventional single-order quantity, check if the system triggers submission restrictions, and confirm that the bulk submission configuration has been adjusted for the scenario.
- Simulate submitting a form with non-standard specifications, check if the associated validation for the delivery lead time is triggered, and confirm that the required rule and downstream threshold are bound.
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.