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Extra Charge

❗️

Extra guest charges (Extra Adult, Extra Child) from ONDA API are not used. Please follow this guide to prevent any claims.

Key Summary​

  • Do not use extra charges: Do not include Extra Adult/Child amounts from API responses in payments
  • Search by base occupancy: Search for rooms based on total guests including infants/children
  • Mandatory on-site payment notice: Always inform customers that extra charges may be payable on-site

Why are extra guest charges not used?​

Although API responses contain extra guest charge fields, most suppliers (properties) do not sufficiently provide values for these fields.

Therefore, extra guest charges are:

  • Not prepaid through the channel
  • Handled as on-site payment

Correct Room Search Method​

Basic Principle​

Search for rooms based on the total number of guests including infants and children as the base occupancy.

Example​

Actual GuestsGuests for API Search
2 adults2 guests
2 adults + 1 child3 guests
2 adults + 1 child + 1 infant4 guests

💡 Example Scenario

When a customer wants to book for 2 adults, 1 child, and 1 infant:

  • API Search: Search for rooms with base occupancy of 4 or more
  • Reservation Request: Book with the room's base occupancy and standard room rate

Reservation Request Guidelines​

Follow these guidelines when making a reservation request:

  1. Base Occupancy: Book with the room's base occupancy
  2. Rate: Only charge the standard room rate (exclude extra guest charges)
  3. Extra Charge Fields: Ignore extra guest charge fields in API responses

Mandatory Customer Notice​

⚠️ Required Notice

Partners must inform customers of the following:

"Additional charges may be payable on-site for guests exceeding the base occupancy."

Why This Notice is Necessary​

  • Extra charges for infants/children are not provided as separate data
  • This information is included in the property details (text)
  • Failure to provide on-site payment notice may result in claims