Selected time entries cannot be deleted because they were imported from Zoho People

Selected time entries cannot be deleted because they were imported from Zoho People

Hello, 

I am trying to delete over 1000 time entry records which were pushed from zoho people to zoho books. I am using an API call, but I am unable to do so because they are imported. The exact error message is this: 

"message": "The timesheet entries that were imported from other services cannot be deleted."

I have deleted the time logs and the time sheets from zoho people for these records, and have tried do a re-sync, but they are still in zoho books. 

Is there a way to 'unflag' them as imported from another service or any other work around for this?

Thanks for any help in advance!