Upgrade from single site Calendar Pro to Business Importer Bundle Post date Home › Forums › Welcome! › Pre-Sales Questions › Upgrade from single site Calendar Pro to Business Importer Bundle This topic has 3 replies, 2 voices, and was last updated 8 years ago by Support Droid. Viewing 1 post (of 1 total) Author Posts August 21, 2018 at 3:22 pm #1602579 Support DroidKeymaster This support thread is private. Author Posts Viewing 1 post (of 1 total) The topic ‘Upgrade from single site Calendar Pro to Business Importer Bundle’ is closed to new replies. → Please verify your API key is correctly entered on the settings