# Re-Upload - Building Basic Charts in Tableau Next   Part 3 [Reposted]

> This is content from just-tim, the data-and-analytics channel by Tim Ngwena (formerly 'Tableau Tim'). Tim has 12+ years of hands-on BI experience and covers Tableau most of all, plus Power BI, Looker, Hex, SQL and data modelling, the analytics industry, and the craft of doing the job — always tool-agnostic and honest about the trade-offs.

- **Author:** Tim Ngwena (just-tim, https://just-tim.com/about)
- **Published:** 2026-04-10
- **Format:** Video · 37 min watch · transcript available
- **Topics:** Data visualisation, Tool strategy
- **Tools:** Tableau (ai, calculated fields, data modelling, lod expressions, next, pulse)
- **Canonical:** https://just-tim.com/posts/re-upload---building-basic-charts-in-tableau-next---part-3-reposted
- **Watch:** https://www.youtube.com/watch?v=sDWAFJ1Ofb0

I upload the Superstore dataset into Tableau Next, build a semantic model from the three tabs, then attempt to recreate the basic chart types from Tableau's canonical charts guide. I work through pie, bar, line, scatter, histogram, bullet, packed bubble, tree map, dot matrix and a table, flagging the bugs and friction along the way.

## Key takeaways

- Tableau Next has no native pie chart or percentage-of-total calculation, so I had to write a fixed LOD just to get proportions on a donut chart.
- Reference lines on a segmented bar chart compute at the wrong level of detail with no way to override it, which I consider a clear bug that breaks trust in the numbers.
- Several chart types from Tableau's guide simply can't be built yet, including bullet graphs, box and whisker, and proper packed bubble or tree map layouts.
- The semantic model defaults join fields to system-created data source objects rather than real table fields, and doesn't name imported tabs sensibly.
- Metrics in Tableau Next look essentially identical to Tableau Pulse, suggesting Pulse was effectively a testing ground for this experience.

## Chapters

- 0:02 Recap and reframing the approach
- 1:58 Uploading Superstore and building the semantic model
- 6:34 Pie chart and percentage of total struggle
- 18:13 Bar chart and the broken reference line
- 23:33 Line chart
- 24:40 Scatter plot
- 26:56 Histogram
- 28:39 Bullet, bubble, tree map and dot matrix
- 33:32 Building a table
- 34:33 Takeaways and next video preview

Watch the full video, read the transcript and use chapter deep-links on the page: https://just-tim.com/posts/re-upload---building-basic-charts-in-tableau-next---part-3-reposted

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just-tim — Data and analytics, with a point of view. · https://www.youtube.com/channel/UC7HYxRWmaNlJux-X7rNLZyw · https://twitter.com/TableauTim · https://www.linkedin.com/in/timngwena