What data for this category looks like
Data for cement yield rates comes from public price reports published by building materials industry monitoring bodies and national bulk commodity spot trading markets. Updates occur once daily, released at a fixed window after that day’s trading closes. Each data document includes five core fields: cement grade, supply region, same-day trading average price, previous trading day’s average price, and same-day total trading volume. Trading average price is measured in yuan/ton, and total trading volume is measured in tons. No percentage-based change ratios are included in the data.
What constraints do these characteristics impose on forms and interactions
The daily fixed-update data source requires form retrieval triggers to align with the industry data source’s release schedule, to avoid returning outdated, unupdated data. The segmented cement grade and supply region fields require forms to support multi-dimensional filtering, and filter options must fully match the data source’s classification dimensions. Misalignment will prevent accurate result returns. The fixed, clear field structure requires form output fields to strictly match the data source’s preset structure, to avoid missing or misaligned fields. The large number of data classification dimensions requires batch queries in forms to limit single-request scope, to prevent interface overload that disrupts interaction experience.
How to configure settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
RETRIEVE_TOP_N | Top 8 entries | After splitting cement data by region and grade, effective data volume per batch is moderate. The top 8 entries cover mainstream supply regions and commonly used cement grades |
SIMILARITY_THRESHOLD | 0.72–0.78 | Cement data has high field matching accuracy requirements. This range filters out irrelevant price quotation data |
FORM_FIELD_REQUIRED | ["Grade", "Region"] | The data source only categorizes entries by grade and region. Missing either dimension prevents accurate retrieval |
SCHEDULED_RETRIEVE_TIME | 18:40 daily | Aligns with the industry data source’s release schedule, which completes updates before 18:00 each day, to ensure returns of the latest data |
CHAT_INPUT_VALIDATION | Only allow preset grade and region options | Prevents users from entering unincluded classifications, which causes retrieval failures |
The parameter values provided on this page are common starting points for configuration setup. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis. It is recommended to test using in-house samples before finalizing settings.
Three common mistakes
- Issue: The form returns the error
{"message": "common:core.chat"}after submission. Cause: Permission parameters for knowledge base switching were not configured correctly, preventing matching with the specified cement price quotation knowledge base. - Issue: In the open-source version 4.8.17, incrementing the loop body execution index returns null. Cause: The initial value setting for variable auto-increment was not enabled in the form’s loop configuration, causing the index to fail initialization.
- Issue: The form does not respond after a user selects the option to skip knowledge base retrieval. Cause: The corresponding trigger logic was not bound to the skip option in the interaction configuration, causing requests to not be routed correctly.
How to confirm proper configuration
- A test request including preset cement grades and supply regions is run, and returned data fields are verified against the data source’s preset structure.
- The similarity threshold value is adjusted to verify that retrieval result matching accuracy meets business requirements.
- The scheduled refresh task is triggered to confirm that returned data update times align with the industry data source’s release schedule.
- The interaction logic for skipping retrieval is tested to confirm that the form correctly executes the corresponding routing.
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.