What is the process to import Transit Times for ship to address of customer?

Summary:

Transit Times Import is failing with this error message

Status: Error. Message Code: RCS_TT_EXT_LOC_INVALID. Message Text: You can't select External Location as the Origin Type or Destination Type for new transit times. You must select Supplier Address.

What should be the Destination Type which can be used for ship to address since we are getting error when Destination Type is selected as 'External Location" in the CSV file used for import?

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