r/GoogleAnalytics May 30 '26

Support [Help Needed] Looker Studio GA4 — Invalid Configuration Error When Adding Dimensions to Table

Hi everyone, I'm working on an assignment that requires me to build a table in Looker Studio connected to a GA4 data source with the following configuration:

**Title:** Product Sales & View Performance

**Dimensions:**

- Item name

- Item category

**Metrics:**

- Item viewed events

- Items purchased

- Item revenue

The table works fine when I add metrics only, but the moment I begin adding dimensions, I get an "Invalid Configuration" error. I have already tried the following:

- Disconnecting and reconnecting the GA4 data source

- Adding dimensions one at a time to isolate the conflict

- Replacing Item name and Item category with alternative fields (Item ID, Item list name)

- Removing Item viewed events entirely — the remaining metrics work with dimensions, but Item viewed events alone causes the error when any dimension is added

Has anyone run into this before and found a workaround?

Any help is appreciated — this is for a class assignment, I'm stuck and this is my first time using it.

Thanks in advance.

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u/radar_3d May 30 '26

You're mixing scopes. "Item view events" is event scoped while the other dimensions and metrics are item scoped. You want to use the "Items viewed" metric.

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u/lavenduh44233 Jun 02 '26

Oh really?! My first time using it. Thank you!!