Or perhaps, the invoice will be sent electronically through email. Or you may require a handwritten invoice form that your technician can complete in the field. Most likely, your company will require a combination of these. Using a template can ensure that your companys design and branding elements are consistent.
Functional template is used when the applicant has considerable gaps in his work history. These gaps make a bad impression on employer and hence should be hidden. This format is more focused on the skills rather than the experiences of the applicant.