Deterministic matching links records using confirmed identifiers, such as a login email or account ID. The match is treated as certain.
Category
Identity
Also known as
deterministic match
It is the safe basis for merging two records into one profile, because a shared hard identifier means the same person. It is more reliable than probabilistic matching.
In practice
Rely on deterministic matching for merges that matter. Merging on anything weaker risks combining two different people into one inaccurate profile.
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