Error "Resolve any duplicates you have for Lead records before you can convert this lead." when converting Leads.
|Knowledge Article Number||000220145|
|Description||When converting lead the following error come up.
"Resolve any duplicates you have for Lead records before you can convert this lead."
However there are no duplicate leads in the system.
|Resolution||This error occurs because the Duplicate Rule on the Contact object is trying to is checking for duplicate records in Leads before creating the contact record.
Since the Lead that has not been converted yet it will be flagged as the duplicate record of the contact that is about to be created upon conversion so that after conversion there are no duplicate contact record
All Leads that will meet the matching rule added on the Contact duplicate rule will encounter the same error when converted.
To resolve the issue, you can either deactivate the duplicate rule that is causing the issue or remove the Lead matching rule on the existing duplicate rule.
This can be resolved by Creating or Editing Duplicate Rules