RE: CRM 365 On Premise Workflow Sending Duplicate Emails
HI,
The best way to check the root cause is Audit History.
Please check, when the record status is being changed, Is there any other plugin or workflow running on the same entity not updating that record?
Sometimes, when you use ColumnSet(true)' inside your plugin or custom workflow and perform service.Update(entityObj); it actually performs an update on all the fields in the database which also might be a reason to trigger this workflow again.
If nothing seems to work, Deactivate all Plugins, Workflows and JS running on the form and check.
Good Luck.
If my answer helped to resolve your issue, kindly verify it by clicking 'Yes'. It would be helpful to the other community members seeking to resolve a similar issue.
Cheers
Arpit
https://arpitmscrmhunt.blogspot.in