Deleting Jobs from Purchasing

Dear Team

We are not using HRMS module.  We are using Purchasing module to define employee / jobs / Approval Group Assignment etc.

I have a question for the community Members.

Can we delete the jobs already created ?

I know that if Job is assign to employee then Job cannot be deleted. We need to remove the JOB/Employee assignment.

Due to some reason we need to delete the unwanted jobs. 

Can someone tell what will be impact of Job deletion from front end ?

Particularly Approval Group assignment / PO approval process.

Warm Regards

Santosh