Multiple unique values for 'Declassify' are being used within the article group.
Explanation:
When the Declassify column is filled, this article group will be removed from the EZ-base classification. This is only possible with the entire article group and not with part of it. The Declassify column will therefore have to be filled for all articles in 1 group. Within the Declassify column it is possible to choose Y, N or no value. However, the value must be identical within the group. Only a complete article group will be removed from the database.
Solution:
Find the group in question and adjust the values to an equal value for that group.
