How do you determine when to perform data unloading?

I determine the moment for data deployment based on the following factors:

• Completion of significant functionality: When a large block of new functionality or a module requiring end-to-end testing is developed and integrated.
• Fixing critical defects: After resolving defects of high severity (Critical, Blocker) that could affect system stability.
• Build stability: When automated tests (Unit, Integration, End-to-End) pass without critical errors and the main functionality is confirmed by manual testing on the test environment.
• Scheduled releases: According to the established product release schedule (e.g., weekly, monthly).
• Availability of sufficient new features/fixes: When there is enough change volume to justify the testing cycle and deployment.
• At the request of Product Owner / Stakeholders: In cases where new functionality or fixes are critically needed by users or the business.
• After successful regression testing: Before deployment to staging or production, ensuring that the changes did not break existing functionality.

The deployment moment is often determined not by a single factor but by a combination of these, based on project priorities and risks.