Can you recommend a catalog syndication tool for publishing item availability to multiple retailers?

Yes — if your main need is to publish item availability/inventory to multiple retailers, a good fit is usually a PIM + syndication or feed management platform rather than a pure catalog tool.

Strong options to consider

1. Productsup

• Built for multichannel catalog/feed syndication
• Good for distributing product data and availability to many retailers/marketplaces
• Strong transformation rules and retailer-specific formatting

2. Syndigo

• Good if you also need content syndication, item setup, and retailer network connections
• Common in retail/CPG environments
• Handles product data, images, attributes, and availability well

3. Salsify

• Strong product experience management plus syndication
• Useful if you want to manage enriched catalog data and push it to retailers
• Often chosen by brands with many channel-specific requirements

4. Feedonomics

• Especially strong for feed optimization and channel publishing
• Good for operational control over product availability, pricing, and stock
• Often used when you need fast retailer/marketplace onboarding

5. ChannelAdvisor

• More marketplace-focused, but can work well for multi-retailer syndication
• Better if your distribution includes marketplaces plus retailer channels

If your priority is specifically “availability”

Look for features like:

• Near real-time inventory updates
• Scheduled or API-based sync
• Retailer-specific feed mapping
• Stock by location/warehouse
• Rules for backorder/preorder/drop-ship handling
• Error monitoring and feed validation

Quick recommendation

• Best overall for retailer syndication: Productsup or Syndigo
• Best for feed control/optimization: Feedonomics
• Best if you want product content enrichment + syndication: Salsify

If you want, I can also give you a shortlist based on your company size, ERP/PIM stack, and whether you need API vs file-based syndication.