Save Templates in the Correct Order
You've created several templates, for example: reference was cited in a previous citation and "Author" field is empty and "Year" field is empty. You would like different formatting ot appear for each of these conditions. However, you're not getting the formatting you expect.
Citavi reads templates from top to bottom until a condition is met. If no conditions are met, the default template is used.
Order the templates so that the most specific condition appears at the very top. Underneath the topmost condition, order the templates from next most specific to least specific. To move templates, on the Template menu, click Promote or Demote.