SmartCard Apple Wallet integration iOS 15.1

Our app supports SmartCardHealth and Apple Wallet-Health integration. We have seen an issue, when we try to add vaccine records with same Vaccine dose details of different users, the wallet app is taking the first one only the later one got automatically replaced by first showing the message "The Vaccination records already added" in Health app. Please help in resolving this issue, whether if have missed out any parameter in minified JSON response. Below are the response for our test records

{"resource":{"vaccineCode":{"coding":[{"system":http://hl7.org/fhir/sid/cvx,"code":"208"}]},"status":"completed","resourceType":"Immunization","performer":[{"actor":{"display":"TESTING PREPMOD"}}],"patient":{"reference":"resource:0"},"occurrenceDateTime":"2022-01-23","lotNumber":"TESTAUTOMATIONLOTNUMBER_D"},"fullUrl":"resource:1"}]}}},"nbf":1643984735,"iss":https://health.ri.gov/sh.cards/test%7D   {"resource":{"vaccineCode":{"coding":[{"system":http://hl7.org/fhir/sid/cvx,"code":"208"}]},"status":"completed","resourceType":"Immunization","performer":[{"actor":{"display":"TESTING PREPMOD"}}],"patient":{"reference":"resource:0"},"occurrenceDateTime":"2022-01-23","lotNumber":"TESTAUTOMATIONLOTNUMBER_D"},"fullUrl":"resource:1"}]}}},"nbf":1643984914,"iss":https://health.ri.gov/sh.cards/test%7D