A Recommend request is triggered when a Recommend API call is performed to retrieve a list of recommendations for a specific item.
Multiple Recommend requests can be batched within a single Recommend API call to improve network latency. However, your usage will be calculated based on the amount of recommend requests that are batched within each call.
Every time you request recommendations for a given
objectID that counts as a chargeable request. This is regardless of how those requests are bundled into API calls:
5 x API calls, each for a single
objectID= 5 chargeable requests.
1 x API call, containing 5 requests for recommendations = 5 chargeable requests.
You can read more on the Recommend API here.