Hi Angela,
To there should be no problems with multi-passenger records so long as each passenger has enough data they can be easily distinguished as a unique record within the single PNR. Ideally also using confirmation number regular expression or event code regular expression. If you're already doing these things I suggest creating a case in the community or reaching out to your account team so our integration specialists can help you through the process.
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Carl Robinson
Senior Solutions Specialist
Cvent
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