# Histogram plot hover data not showing all columns

**URL:** <https://community.plotly.com/t/histogram-plot-hover-data-not-showing-all-columns/61158>\
**Category:** 📊 Plotly Python\
**Tags:** question\
**Created:** [February 17, 2022, 9:49am UTC](https://community.plotly.com/t/histogram-plot-hover-data-not-showing-all-columns/61158 "2022-02-17T09:49:01Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jlfsjunior](https://sea2.discourse-cdn.com/flex024/user_avatar/community.plotly.com/jlfsjunior/32/16061_2.png) [@jlfsjunior](https://community.plotly.com/u/jlfsjunior)\
**Post date:** [February 17, 2022, 1:11pm UTC](https://community.plotly.com/t/histogram-plot-hover-data-not-showing-all-columns/61158/2 "2022-02-17T13:11:48Z")

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Hi,

Starting with the last point: you need to add extra columns/data via `customdata` in order to access them in the hovertemplate. Here is a link to the docs using `graph_objects` (not express): [Hover Text And Formatting](https://plotly.com/python/hover-text-and-formatting/#adding-other-data-to-the-hover-with-customdata-and-a-hovertemplate)

I am not 100% sure about the attempts 1 and 2, but I believe the issue is that the “text” column is not added in the aggregation to create the histogram and `hover_data` is silently ignored. The method 2 you described works fine with scatter and bar, so you could consider doing the aggregation yourself and use `px.bar` instead.

Hope this helps!

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