Default Send Classifications defined for User Initiated Sends and Triggered Sends
|Knowledge Article Number||000221580|
There's a slight difference between how the Default Send Classifications are set between User Initiated Sends and Triggered Send Definitions, outlined below.
For the User Initiated Send Definition, the Default Send Classification is set to "Default Commercial" which is created with account provisioning. If that's deleted, it will default to the oldest Commercial Send Classification created in the account.
Note: For the triggeredsenddefinition the default send classification is the first one listed via alphabetical order.