Availability Date [availability_date] Field for Product Feed

Optional for most products — Required for preorders/backorders (Google & ChatGPT)

The availability_date attribute tells customers when a preordered or backordered product will ship.
If your product’s availability attribute is set to preorder or backorder, you must include an availability date (up to 1 year in the future).

This date should also be shown clearly on your product’s landing page.

When to use

• Required when:
  • availability = preorder
  • availability = backorder
• Optional for other products to display an expected ship date.
• Can be used for:
  • Seasonal stock arrivals
  • Special edition product launches
  • Supply chain delays

Format

• Type: Date, time, and time zone (ISO 8601)
• Format: YYYY-MM-DDThh:mm[±hhmm] or YYYY-MM-DDThh:mmZ
• Limits: 1–25 characters
• Repeated field: No

Formatting examples:

Minimum requirements

• Must be provided if product is on preorder or backorder.
• Date must be no more than 1 year in the future.
• Show the same date clearly on the product landing page.
• Do not submit a date range — only a single date/time.

If exact date is unknown, submit an estimated date (e.g., 2025-05-01T00:00-0000).

Best practices

• Always include time and time zone to avoid confusion.
• Update the date as soon as an accurate shipping estimate is available.
• For marketing campaigns, align availability dates with promotions and PR launches.

SEO Tip

Setting accurate availability dates for preorder or backorder products can boost trust and conversions by clearly communicating delivery expectations to customers.

Official Source: https://support.google.com/merchants/answer/6324470