The setting "Allow to add new skills" is enabled by default. This helps you quickly build your Skill Inventory from the job and candidate data automatically. Although this enhances flexibility and saves time, it can also lead to a cluttered or inconsistent skill list if unchecked.
To maintain a clean and consistent database, we strongly recommend using the Skill Management tool.
Once you have a sufficient and relevant list of skills for your jobs and candidates, you can disable this setting to maintain the stability of your existing skill set.

When Allow to Add New Skills is enabled, users can create new skills that do not yet exist in the Skill Inventory. These skills are automatically added when they are entered in the Skill field on:
Job Posts (via manual update or import)
Candidate profiles, including Employee profiles on Career Hub (via manual update or import)
This allows your Skill Inventory to grow naturally from real hiring and learning activities, without requiring manual skill creation by administrators.