Document Creation Logs

The Document Creation Logs are diagnostic records that capture what happens during purchase document creation. They are written only when logging is enabled in Core Setup and are used to troubleshoot how a Core document became a Business Central record.

Purpose

When a purchase document is created from a Core document, several steps read the source data and build the record. If the result is not what you expect, these logs show the source JSON alongside the actual record JSON at each creation point, so you can pinpoint where a value came from or where it diverged.

Enabling logging

• Open Core Setup.
• Switch on Enable Logging.
• Re-run the document creation you want to diagnose so that logs are written.

Logging adds overhead and produces data at every creation point. Enable it only while investigating an issue, and switch it off again afterward.

Reading the logs

Open the Document Creation Logs list from Core Setup (Document Creation Logs action) or by searching for the page. Each entry corresponds to a creation point during document creation.

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To compare the data, open the JSON Comparison view. It shows the source JSON (what the document provided) next to the record JSON (what was written to the Business Central record) so you can spot differences directly.

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Troubleshooting workflow

• Enable logging in Core Setup.
• Reproduce the document creation.
• Open Document Creation Logs and find the entries for that document.
• Use the JSON Comparison to check where a field value was set, changed, or missing.
• Adjust field mappings or rules as needed, then disable logging.

Related features

• Core Setup
• Field Mapping
• Core Documents