VERIFIED SOLUTION i
Following error is being observed while opening the AFP file generated from EngageOne Server.
This may be caused due to AFP driver (output device) not being used in delivery channel while generating the AFP file. For example, .afp file is created using PDF driver which gives problem while getting opened in AFP viewer but gets opened in a PDF reader (Acrobat Reader) as that becomes a PDF file due to PDF driver used.
ResolutionUPDATED: September 19, 2018
It is recommended to use the appropriate driver (output device) in the delivery channel with respect to the output file type.