What Is the Fuzzy Matching Success Rate for the Signal API?

Matching accuracy depends on which parameters you provide — the more identifying data included, the higher the confidence.

Applies to: Signal API

Answer

The accuracy achieved depends on the specific data and parameters provided when using the Signal API. For higher accuracy:

Scoping down to an advertiser or campaign, if that data is available, improves accuracy.
Providing Caller ID is recommended, though not mandatory — accuracy is lower if only the start time is provided without Caller ID.
Including call duration as a parameter can also improve accuracy.

For the highest level of accuracy:

Provide the call ID or transaction ID in the API request.
If neither is available, combine start time, Caller ID, and duration — this combination is likely to produce very accurate matching.