1) Why when I create a Mailing List, ID is similar to "CG_eCZYmWC54nHKS9M" (i.e. "CG_...") and when I do it manually, Qualtrics create something similar to "ML_eQyqJ6wZEjCtaqa" (i.e. "ML_..."?
2) Why exists an error when I use List Mailing List service and I create Distributions with "CG_eCZYmWC54nHKS9M", but it works when I use "ML_eQyqJ6wZEjCtaqa"?
Question
Two doubts about Qualtrics API
+71) Found this in the Qualtrics Id documentation: ML_ stands for "Mailing List" of course much like S_ is their Survey ID prefix and R_ their Response ID prefix. CG_ is also Mailing List, but through their new TA / XM Directory. 
Makes me wonder if the Directory API is still calling the new directory, but the front end is still referencing the old service.
2) This supports my last sentence all the more. Sounds like the GUI changed, but is still being driven largely by the old service.
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