First things first, you can edit your certifications from one of two places, your Profile tab or your Credentials tab. Adding a certification to one will automatically upload it to the other, so it is just your preference on where you want to access it from.
How do I edit a certification from my Profile tab?
Navigate to your Profile.
Locate your certifications.
Hover over the certification you want to edit, update, or delete and click the 'Edit (pen)' button.
4. This pulls open a side drawer where you can either edit, update, or delete the certification.