Guides
Practical preparation guides.
Use these resources to understand platform workflows before editing a large file.
WooCommerce variation Parent & SKU checkerExisting guide and browser-local checker ↗Merchant Center TSV processing errorsExisting guide and browser-local checker ↗
More guides follow evidence, not volume.
Supplemental-feed ID matching remains a guide candidate. It will not claim that the current tool compares primary and supplemental files.