According to the search results, a Credential ID in LinkedIn is a unique alphanumeric code assigned to an individual who has completed a LinkedIn Learning course or program. It is used as a digital badge to verify and showcase the skills and knowledge acquired through the course or program. The Credential ID is the unique number assigned to the certificate earned, while the URL helps explain what the certificate is for. Adding a Credential ID to a LinkedIn profile is a simple process. To do so, one can log in to their LinkedIn account and navigate to their profile page. Then, click on the “Add profile section” button, located below the profile picture. From the dropdown menu, select “Licenses & Certifications” and enter the Credential ID and URL. Adding a certificate to a LinkedIn profile and resume can help in a job search, as recruiters may use that certificate as a keyword when searching for candidates.