Field Migrator

Field Migrator Field Migrator (wp-field-migrator) adds an admin interface to preview and migrate values from one field into another for a selected post type. Access - WordPress Admin - Tools - Field Migrator - URL: /wp-admin/tools.php?page=wp-field-migrator Current capabilities - Source - target field mapping for a selected post type. - Field pickers grouped by: - Core Fields - ACF Fields (Active) - ACF Fields (Inactive) - Detected Meta Keys - Optional Custom meta key... fallback for source and target. - Optional toggle to show internal/private keys (metakey). - Paginated preview (Page, Per Page). - Preview All Changes (Append) to stream/append preview rows across all posts in async batches. - Stop Preview Appending to halt append mode. - Export Dry-Run CSV (All Posts) to download full preview output without writing changes. - Async migration across all posts with configurable Migration Batch Size. - Efficient cursor/keyset batching (ID lastid) to avoid large offset queries. - Skips rows with empty source values and rows where target already matches source. - Run history with per-run status/totals, failed IDs, and downloadable CSV run reports (including per-batch logs