# How transitive matching works
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Transitive matching uses the following match ID resolution process for each match group on the current rule:
+ The system checks if any record in the group already has a match ID from an earlier rule level.
+ If a match ID exists, the entire group inherits that earlier match ID.
+ If multiple candidates exist, the smallest match ID from the earliest rule level is selected.
+ If no prior match exists, the group is assigned a new match ID.