Required input is null or empty

CAT_VALIDATION_ERROR_REQUIRED_INPUT_PARAMETER_NULL or _EMPTY signals that a mandatory product or catalog field was omitted. The required set is id, item_group_id, title, description, link, image_link, availability, price, and one of brand/gtin/mpn.

Specific issue affecting how Snap Catalog Manager processes your product data — see the linked official article for the exact mechanism and fix.

1. Open the linked Snap Catalog Manager help article for the specific resolution steps.
2. Identify which products are affected via Snap Business Manager → Catalogs → Diagnostics.
3. Make the necessary corrections in your product data feed.
4. Re-upload the corrected feed and verify the issue clears in the next processing cycle (typically 4–24 hours).

• Assuming the issue auto-resolves — most issues require active correction