Fill Descendants

Set this property to the exact value of the 'Name' property of a Data Fill Method as configured on descendant containers.

• Only fill methods with this name will be executed on each descendant.
• If no matching fill method is found on a descendant, that element is skipped.
• Use this to target a specific fill method for parallel execution across a data hierarchy.

Example:
If you have a fill method named AI Extract on several Data Section and Data Table elements, set this property to AI Extract to run that method on all matching descendants.

This property determines how many fill method prefetch operations (such as API calls or LLM completions) can run concurrently.

• Increase this value to improve throughput when processing large or complex documents, especially when fill methods involve network or compute-bound operations.
• Decrease this value to limit resource usage or comply with external service rate limits.
• The default value is 16. Valid range is 1 to 32.

Tip:
If you encounter throttling or resource contention, reduce this value. For maximum performance on multi-core systems or when using high-throughput APIs, increase it as appropriate.

The 'Name' property identifies this fill method within the list of fill methods attached to a Data Model, Data Section, or Data Table.

• Use a clear, descriptive name to indicate the purpose or strategy of the fill method (e.g., "Run Child Extractors", "External Lookup", "Custom Calculation").
• The name is displayed in configuration UIs and logs, and is used to distinguish between multiple fill methods on the same container.
• The name is also used by the Fill Descendants command to identify which fill methods to execute during extraction.

The 'Trigger' property allows you to specify a condition under which this fill method will execute.

• If left empty, the fill method always runs.
• Enter a Boolean expression referencing data values, variables, or context to control execution.
• This enables conditional extraction logic, such as running a fill method only for certain document types or when specific data is present.

Example:
@DocumentType == "Invoice" && @TotalAmount > 0

If 'Overwrite' is set to true, this fill method will replace any existing values in the target data elements.

• Set to false to only populate fields and collections that are currently empty.
• Use this option to control whether extraction results should always be refreshed, or only filled in when missing.
• This is especially important when multiple fill methods are configured, or when data may be pre-populated from other sources.