In some cases you might want users to keep a competency once they’ve achieved it, regardless of any changes made afterwards. This happens with university degrees, for example; whatever happens to the degree requirements after graduation, a graduate’s degree is not reassessed or revoked.
The competency property Allow re-evaluation of users who’ve achieved this Competency controls whether users who’ve completed the competency should be exempt from re-evaluation, or whether their completion of the competency should be re-evaluated if the competency is ever changed.
You can change this setting on the Edit Competency page or set it when creating a new competency.
Note Learning objectives attached to the competency are still re-evaluated where necessary, regardless of this setting. The setting only affects completion of the competency element itself.