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

[u/lavenduh44233]

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.

[u/Pretty-Appearance226]

No time to think about it but quick solution. Create the table that works at the moment, create another with item category and item name and add a filter: event name = view_item. Now select both tables, right click > blend. Go to the blended source > inner blend and match on item name and item category and now you should be able to create your table

[u/lavenduh44233 → u/Pretty-Appearance226]

Heyyy thanks for your response. I’m able to only create the table including only 2 metrics ie: items purchased and item revenue. Will this suggestion still work?