SMP 8.7 failed when trying to export the NS Communication Profile and the SMP log shows the following:
"The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. "
"Invalid length for a Base-64 char array or string."
ITMS 8.7.1
The problem only occurs when using IE explorer.
IE is not supported on SMP 8.7 as per the following ITMS documentation:
Per the above documentation it is recommended to use the SMP Console using Chrome or Edge to export the Communication Profile.