000016: <value> annotation(s) rejected.

Description

A number of annotation features were rejected during the append process and have not been added to the output annotation feature class because they are outside its extent.

Solution

Either append the annotation features into a feature class created by the tool and let the tool create the extents or create an annotation feature class with a larger extent, move the annotation features from the destination annotation feature class into it using the Copy Features tool, and append the other data into this new annotation feature class.