Document Parsing and Chunking for Property Management

What the data for this category looks like

Property management financial report data primarily comes from project monthly revenue ledgers, quarterly energy consumption statistical reports, annual property fee collection summaries, special maintenance fund usage details, and similar materials. Update cycles follow monthly, quarterly, and annual schedules. Document formats are mostly Word, PDF, or structured Excel. Some older projects include image attachments such as project floor plans and energy consumption trend charts. Some financial reports are stored as scanned PDF files. Fixed fields in documents include project name, number of paid households, monthly revenue amount, energy consumption per unit area, and maintenance expenditure amount. Corresponding units are households, ten thousand yuan, kilowatt-hours per square meter, and yuan.

What constraints these characteristics impose on document parsing and chunking

The mixed multi-format nature of property management financial reports requires parsing to support both structured table extraction and unstructured text OCR. This avoids losing the binding relationship between fields and units during chunking. The fixed-cycle update schedule requires chunking to match the time granularity of financial reports. This prevents merging content across months or quarters. In long-document scenarios, chunking must retain the complete row and column structure of tables. This avoids confusion in field correspondence after splitting. The existence of scanned PDF files requires enabling OCR parsing and adapting to skewed layout content. Otherwise, field recognition misalignment occurs. Image attachments included in some documents must be extracted separately and associated with their corresponding financial report chapters. This avoids losing context during subsequent retrieval.

How to set configurations

Configuration Item	Recommended Setting	Rationale
`PARSE_FILE_TIMEOUT_SECONDS`	120 seconds	Property management financial reports have large per-page content and include OCR parsing. Sufficient processing time must be reserved.
`maxChunkSize`	800–1200 characters	Matches the average length of financial report fields and paragraphs. This avoids destroying the contextual association of financial data after splitting.
`chunkOverlap`	100–150 characters	Retains overlapping content between adjacent chunks. This ensures complete continuity of cross-chunk financial metrics.
`enableOcr`	Enabled	Adapts to scanned financial reports from older projects. This ensures content extraction from unstructured documents.
`preserveTableStructure`	Enabled	Retains the row and column structure of tables in financial reports. This avoids losing structured data such as property fee collection and energy consumption statistics after splitting.
`imageAttachmentDomain`	Configure enterprise intranet or public network domain name	Resolves the issue of lost image domain names when importing Markdown. This ensures images load correctly in conversation scenarios.

The parameter values provided on this page are general recommendations for starting point 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 your own samples before finalizing.

Three common configuration mistakes

Issue: Image link domain prefixes are lost when importing Markdown-format property management financial report attachments. Images fail to load normally in conversations. Cause: The imageAttachmentDomain parameter is not configured, or the configured domain name does not match the access path.
Issue: Parsing large-scale annual financial reports fails with a task timeout. A 504 Gateway Timeout error is returned. Cause: The PARSE_FILE_TIMEOUT_SECONDS parameter value is too low. This fails to adapt to the time requirements of long documents and OCR parsing.
Issue: In fastgpt4.8.10, calling the API to retrieve chunked content fails to return complete single financial records. Cause: The chunkIndex parameter is not specified correctly, or the preserveTableStructure parameter is not enabled. Chunk splitting does not meet business requirements.

How to confirm configuration correctness

Upload a scanned financial report from an older project. Check if the parsed result includes complete text and table content. Confirm that the OCR function is working properly.
Upload a monthly financial report containing multiple images. Check if the image links carry the configured domain name prefix. Confirm that the image loading path is correct.
Retrieve the content of a single chunk. Verify that it includes complete financial fields and associated context. Confirm that the chunk overlap and size settings meet business requirements.
Test uploading a single multi-page annual financial report. Check if the parsing task completes within the preset timeout period. Confirm that the timeout parameter configuration is reasonable.

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.