Field too long (validation 20001)

A field exceeds Microsoft's maximum length - title is capped at 150 characters, description at 10,000, brand at 1,000.

Microsoft Merchant Center validates titles against character limits, casing rules, and content policies — promotional language, all-caps, special characters, or keyword-stuffed titles are rejected.

1. Trim title to the channel's character limit (most: 150–200 chars).
2. Use Title Case — capitalize first letters of major words, not entire words. Remove ALL CAPS phrases.
3. Remove promotional language: 'SALE', 'Best Quality', 'Free Shipping', 'Buy Now', etc.
4. Format consistently: Brand + Model + Key Specs + Color/Size + Pack.
5. Re-submit; title updates typically propagate within 1–4 hours.

• Smart quotes from Word/Docs — Unicode chars often fail title validation
• Repeating brand name multiple times — flagged as keyword stuffing