As a store administrator, I want fields in existing product variants to be automatically updated to default values if empty or overridden to expected values, so that I don’t have to manually check and adjust fields.

• All fields in the product entry form have predefined default values configured in the system.
• When a field is left blank during product entry, the system automatically applies the default value for that field upon submission.
• Default values are relevant and appropriate to the field type (e.g., "N/A" for text fields, 0 for numeric fields, or a standard category for dropdowns).
• Users can override default values by manually entering data before submission.
• The system saves the product entry with default values for unfilled fields without requiring user confirmation.
  
• Default values are consistently applied across all product entries for the same field types.
  
• The form submission time is not significantly delayed by the auto-fill process (less than 1 second).

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Implemented n8n workflow that automatically adjust variants:

• Fields like taxable, inventoryItem.tracked, requiresShipping default to false; compareAtPrice to "1000.00" if empty or "0.00"; work_item_state metafield to "Start" if empty; productType to "Work item" if empty.
• Workflow fetches paginated variants, checks conditions via Switch with all matching outputs for parallel routing, applies updates via GraphQL mutations only if needed.
• Defaults are appropriate (boolean false for flags, specific values for prices/metafields/types).