Error 8016 — Insufficient variation data

Your variation feed lacks required attributes for the variation theme — e.g., 'Color-Size' theme but no size value on a child.

Generic exporters that don't fill all variation theme attributes for every child SKU.

1. Confirm every child SKU has all attributes required by the parent's variation_theme.
2. For 'Color' theme, every child needs color filled.
3. For 'Color-Size', every child needs both color AND size.
4. Resubmit.

• Leaving size blank on one-size-fits-all variants — use 'One Size' explicitly