Data internal to the add-on that it can use to initialize itself. Useful for communicating application-specific state to users joining the activity that cannot be stored in the URLs. The length of this string must be less than 4,096 characters.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-10-07 UTC."],[[["`ActivityStartingState` interface defines the initial state of an add-on when a user joins an activity."],["It includes properties like `additionalData` for internal add-on data, `mainStageUrl` for the main content URL, and `sidePanelUrl` for the side panel content URL."],["URLs for `mainStageUrl` and `sidePanelUrl` must be less than 512 characters, while `additionalData` string must be less than 4,096 characters."]]],["The `ActivityStartingState` interface defines the initial state of an add-on when a participant joins an activity. It includes `additionalData`, a string under 4,096 characters for internal add-on initialization data. `mainStageUrl` (under 512 characters) specifies the URL for the main stage view, while `sidePanelUrl` (also under 512 characters) indicates the URL for the side panel view for users joining the activity. These URLs are what is opened for users when they join.\n"]]
