What is the method used in the MatchingRuleProcessor API to invoke matching rules?

The method used in the MatchingRuleProcessor API to invoke matching rules is 'ProcessAndGetCandidates'. This method is designed to execute the matching rules defined within the processor and subsequently retrieve the candidate records that match the specified criteria.

'ProcessAndGetCandidates' is particularly tailored to ensure that the matching logic is applied effectively, taking into account the various parameters and configuration settings that may be defined in the ServiceNow instance. By first processing the rules, this method ensures that the candidates returned reflect the most up-to-date and relevant matches based on the rules defined.

This capability is essential for applications such as HR processes, where accurate and efficient matching of records, such as candidates for job positions, is crucial for operational success. The comprehensive nature of the 'ProcessAndGetCandidates' method allows it to handle complex matching scenarios effectively, leading to improved automation and workflow efficiency in ServiceNow environments.