If you are making updates to an accreditation, especially if adding/removing requirements or changing eligibility, it is a good practice to follow the update with a manual recalculation of the accreditation for the position groups tied to it.
When this is not done, you may find later that some people who have completed all the requirements to achieve the accreditation are still not getting it. Some events do not trigger the automated accreditation scripts to re-evaluate achievement status.
Even when no clear change has been made to the accreditation, when you find situations in which accreditations are not being properly calculated for someone, a good first troubleshooting step is to go through this process, which can be applied to locations, position groups, or individuals.
To manually calculate an Accreditation: