This article explains why certain Competence Codes might not be available for selection under the Competence Datagroup.
Solution
There can be several reasons why Competence is not available:
General Codes > Competence Codes > Organization filter is applied.
The same will be reflected under the Organization Structure > selected organization > General Codes > Competence Codes and vice-versa. The settings are co-dependent.Control Center > selected access level > General Codes > Competence Views access is set to No for the View that contains this Code.