> For the complete documentation index, see [llms.txt](https://docs.hello-lisa.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hello-lisa.com/developers/analytics/abobe-appmeasurement/alias-mapping-tables.md). # Alias Mapping Tables You receive logical alias keys in `contextData` and should use **Processing Rules** to map these to your own **eVars**/**props** or merchandising dimensions. The placeholders below (e.g., `eVar{X}`, `prop{Y}`) should be replaced per your availability.

Alias (contextData key)	Meaning / Use Case	Suggested Adobe Target (placeholder)	Friendly Label Example
`lsc.clockDriftInMs`	Clock skew diagnostics	prop{CLOCK_DRIFT}	Clock Drift (ms)
`lsc.eventDate`	Client-side timestamp (for sync/diagnostics)	prop{EVENT_DATE}	Client Event Date
`lsc.eventId`	Unique event instance for dedupe/debug	prop{EVENT_ID} (optionally eVar)	LiSA Event ID
`lsc.eventType`	Semantic kind of event (used for segmentation/funnels)	eVar{EVENT_TYPE}	Event Type
`lsc.locale`	Visitor-level segmentation	eVar{LOCALE}	Locale
`lsc.mediaItemId`	Media content being interacted with	eVar{MEDIA_ITEM_ID}	Media Item ID
`lsc.mediaItemType`	`'live'`, `'replay'` or `'story'`	eVar{MEDIA_TYPE}	Media Item Type
`lsc.progress.currentTimeInMs`	Playback position	prop{CURRENT_TIME_MS}	Current Time (ms)
`lsc.progress.durationInMs`	Total duration	prop{DURATION_MS}	Duration (ms)
`lsc.progress.elapsedTimeInMs`	Watch engagement	prop{ELAPSED_TIME_MS}	Elapsed Watch Time (ms)
`lsc.progress.isLive`	Underlying stream live state	eVar{IS_LIVE}	Is Live
`lsc.progress.isPlaying`	Playback active state	prop{IS_PLAYING}	Is Playing
`lsc.storeRef`	Filtering / cross-store comparison.	eVar{STORE_REF}	Region or Store
`lsc.visitorExternalId`	Your visitor/user identifier	prop{VISITOR_EXTERNAL_ID}	Visitor External ID
`lsc.visitorId`	LiSA visitor identifier (persistent per user)	eVar{VISITOR_ID}	Visitor ID
`lsc.visitorSessionId`	Session-scoped identifier	eVar{SESSION_ID}	Visitor Session ID

{% hint style="warning" %} You should create Processing Rules such as: {% endhint %} * **If** contextData key `lisa.visitorId` exists → **Set** eVar{VISITOR\_ID} = value of `lisa.visitorId` (label “LiSA Visitor ID”). * **If** contextData key `lisa.eventType` exists → **Set** eVar{EVENT\_TYPE} = value of `lisa.eventType`. See Adobe’s documentation on mapping contextData to props/eVars via Processing Rules. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hello-lisa.com/developers/analytics/abobe-appmeasurement/alias-mapping-tables.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.