To resolve this error, an admin must take the following steps:
- Go to Setup > select Site Options
- Select the Open API Configuration tab
- Next to the first option, "Configure API Keys", click Edit API Key
- Under the first option, "1. Convio API Key", read the Convio API License Agreement terms and determine if you agree.
- If you agree, then enter an API key in the blank space. If you do not have an API key, then just enter APIKey in this field.
- Click Save