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Extend an Existing Semantic Model with the Reports Metadata Bridge (Beta)
Use the Reports Metadata Bridge to add data from your Lightning Experience report types to an existing Customer 360 (C360) semantic model in Tableau Next, without changing the original model.
The extend flow is a guided flow that analyzes your most-used reports, compares them against an existing semantic model, and adds only the new data to a semantic model in five steps:
- Semantic model selection
- Source report type selection
- Data lake object (DLO) mapping for new source objects
- Data model object (DMO) mapping for new source objects
- Semantic model generation
The extend flow saves your progress, so you can stop and resume at any time.
At each step of the flow, you control the selection of reports and data objects, while the flow maps the data for you. The flow identifies data objects already covered by the selected semantic model and doesn't duplicate them.
The base semantic model isn't modified. The bridge creates a new semantic model that extends the base with the additional data you select.
After the bridge generates a semantic model, add field and object descriptions to improve AI readiness.
Prerequisites
The prerequisites for extending a semantic model are the same as for generating a new one. See Reports Metadata Bridge Prerequisites.
Limitations
The extend flow doesn't support these capabilities:
- Extending semantic models other than C360semantic models. Only C360 semantic models are supported as the base.
- Modifying objects, fields, or relationships in the base semantic model. The extend flow always leaves the base semantic model untouched and creates a separate extended semantic model.
- Extracting data from dashboard queries or widget-level metadata.
- Extracting object descriptions into the generated semantic model.
- Generating granular field or object descriptions.
Use Tableau Semantic Models for Data Insights
After the bridge generates your semantic model, use your model to define, govern, and query all your business metrics. For more information on building and configuring semantic models in Tableau Next workspaces, see Build a Semantic Model.
