[POST] Call Personalisation (Bulk)

Async API to send call personalisation data for a Caller-Receiver combination

Here are a few things to consider when pushing the records through the API :-

  • Caller and receiver should be phone numbers without the “+” character.

  • ends_at should not be before the current timestamp.

  • starts_at and ends_at cannot be more than 24 hrs apart

  • label_id should be that of a dynamic label belonging to this client.

  • Label name and call reason are optional fields.

  • Max length for label name is 40 chars

  • Min length for call reason is 10 chars

  • Max length for call reason is 50 chars

  • starts_at and ends_at should be in milliseconds.

Rate limits

Truecaller for Business restricts API requests when you exceed the limits entitled to your business.

  • Thus, if your business is using a batch based approach to push records to our systems, 10*60*500 = 300000 records can be processed every minute.

Here, the batch size is 500. This means that a maximum of 500 requests can be processed at a time.

Adapting to rate-limits

  • Exponential Backoff: If you receive a "429" status code, consider implementing exponential backoff for retrying requests.

  • Prioritize Important Requests: If your application performs various tasks, prioritize critical requests over less essential ones to stay within limits.

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