CRM 4.0 can't attach sales literature to emails - something that seems to be "obvious" - what's the point of being able to store sales literature in the CRM system (as a "repository") without being able to email it to contacts?
[Note: you can - just download onto your hard disk, then attach to email - but hang on - that defeats the whole object!!!]
The key to making this work is to give the user the ability to select the relevant sales literature onto an email.
We've done this by adding a new (custom) attribute to the email entity: new_salesliteratureid. This is configured as follows (click on thumbnail to enlarge)
Couple of notes:
Onto the Plugin that makes it work...