We need time when the request state changed to Work In Progress. For this, you can create a read-only date field.
Then, create a Business rule so whenever the state is changed to Work in progress. Populate the date field with the current date.
Create a Scheduled job (daily), which queries the sc_request records which are in Work in progress state, and then for each record, get the value of the date field and compare it with the current date.
You can use gs.datediff() to get the duration between dates.
Then, if the duration is more than 10 days update the record.
If this answers your question, kindly mark this as a Solution.
