Certain types of planned gifts can have additions. Additions are used to track modifications made to the original planned gift amount. Additions can have their own designations and assets. CRM users may notice that they are unable to add additions as revenue when the planned gift vehicle type is Living Trust.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.
Alternative Solution: Enter the addition as a new planned gift, and add that planned gift as revenue.