Included destination [included_destination] Field for Product Feed

Optional for each product

The included_destination attribute tells Google where you want your product to appear, beyond the default feed settings.
Use it to explicitly allow participation in specific Google surfaces, ads, or listings.

When to use

Use this attribute to opt in products to certain destinations such as Shopping ads, Display ads, or Free listings.
If there’s a conflict between included_destination and excluded_destination, the excluded value will always take priority.

Common scenarios:

• Enabling local inventory ads for specific products.
• Including selected products in YouTube-affiliated placements.
• Expanding free listing participation for local-only inventory.

Format

Follow these formatting rules so Google correctly interprets your data.

• Type: Choice (must match one of the supported values)
• Supported values:
  Shopping_ads, Display_ads, Local_inventory_ads, Free_listings,
  Free_local_listings, Cloud_retail, Local_cloud_retail
• Repeated field: Yes — submit multiple attributes or separate values with a comma
• File format examples:

Minimum requirements

• Submit only supported values from Google’s list.
• Use separate attributes or commas for multiple destinations.
• Don’t submit unsupported values, they will be ignored.

Best practices

• Keep included_destination aligned with your campaign targeting and bidding strategy.
• Use together with excluded_destination to fine-tune placements.
• Review performance reports by destination to see if inclusion is driving ROI.

SEO Tip

While this attribute doesn’t affect organic SEO directly, adding your products to Free listings and Free local listings can improve product visibility without ad spend.

Official Source : https://support.google.com/merchants/answer/7501026