Hi,
Is there a possibility to make a GET call for a message of type Evaluator / Participant Invite? I keep getting status 500 as a return. Documentation of the List call mentions:
https://api.qualtrics.com/1d60a66b340fa-list-library-messages
Valid categories include: invite, inactiveSurvey, reminder, thankYou, endOfSurvey, general, lookAndFeel, emailSubject, smsInvite, validation
JoycaV
Not sure if you still need this but, I believe for 360 Message Types you need to refer to different documentation. You can see the link below.
(Three Sixty API Documentation (qualtrics.com))
Hope it helps!
Deepak Thank you for providing resources for API! 
Deepak thank you for that link, I didn't know that one yet.
however I tried out the "Request=getLibraryMessages" and still this API also only lists the message types from Core, and no the EX employee invite messages unfortunately.
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