HI Ashish, Can you elaborate more on your ask. Are you looking for the creation of a Report on Duplicate Records in account?If so, https://help.salesforce.com/articleView?id=duplicate_management_custom_report_types.htm&type=5 should help.
Duplicate Calendar records appear on a Tasks and Events report https://trailblazers.salesforce.com/answers?id=90630000000h1aeAAA
Happy to answer follow up queries. Hope this helps you. Please mark this answer as best so that others facing the same issue will find this information useful. Thank you
Can you elaborate more on your ask. Are you looking for the creation of a Report on Duplicate Records in account?If so, https://help.salesforce.com/articleView?id=duplicate_management_custom_report_types.htm&type=5 should help.
https://help.salesforce.com/articleView?id=000316901&type=1&language=en_US&mode=1
Duplicate Calendar records appear on a Tasks and Events report https://trailblazers.salesforce.com/answers?id=90630000000h1aeAAA
Happy to answer follow up queries. Hope this helps you. Please mark this answer as best so that others facing the same issue will find this information useful. Thank you