---
title: "How to fix an error caused by an invalid field combination in Looker Studio"
description: "What should I do with an invalid combination of dimensions and metric"
url: https://help.portermetrics.com/en/articles/164-how-to-fix-an-error-caused-by-an-invalid-field-combination-in-looker-studio
collection: "Troubleshooting"
updated: 2026-09-25
language: en
alternates: [es]
---

# How to fix an error caused by an invalid field combination in Looker Studio

What should I do with an invalid combination of dimensions and metric

If you're seeing an error message in your charts that says **invalid combination of dimensions and metrics**, don’t worry. This error is pretty common and pops up when you’re trying to show data in the same table that doesn’t belong to the same category or entity. Here’s a step-by-step guide to help you fix it.

**Step 1: Spot the error**

Click on **“View details”** in the error message on your table.  
Looker Studio will tell you that the problem is an **invalid combination of fields**.

**Step 2: Check your table setup**

Click **"OK"** to close the message and check which dimensions and metrics you're using.

In this example, the report includes fields like:

-   Post date
    
-   Video image
    
-   Reel image
    
-   Post image
    

**Step 3: Fix the field combination**

The connector APIs work like **separate tables**.  
That’s why you can’t mix metrics and dimensions from different types, like:

-   **Page data** with **post data**
    
-   **Video data** with **reel data** or post
    

To fix the error:

1.  Change **Post Date** to its generic version (**date only**).
    
2.  Remove **video** and **reel** fields if you're only working with posts.
    
3.  Remove **page** metrics (like page visits) if they're not related.
    

**Step 4: Check that the error is gone**

Once you've adjusted the fields correctly, your table should load up just fine.

**Step 5: Add relevant metrics (optional)**

If you want to add more info to the report, do it carefully.  
For example, you can add **post reach**, as long as you keep the match between dimensions and metrics.

### Key tip:

> Make sure all the metrics and dimensions in your table **come from the same dataset**.

You can check this on the right side of your report, under **data properties**.

If you get an error message saying you mixed non-valid metrics and dimensions, you can do this:

-   **Check your table combinations**: You can't combine page metrics and dimensions with those from posts or videos.
    
-   **Make sure the data you're trying to show comes from the same set**. You can check this on the right panel of the report, in the **data properties**.
    
-   **Check out our field lists** by data source, available in the **Products** tab on our [main page](https://portermetrics.com).
    
-   **Read this article** with the basics to build charts the right way:  
    How to create charts in Looker Studio
    

### Still got questions?

Think it might be a bug?  
Contact us by **chat** or write to us at support@portermetrics.com.  
We'll help you out as soon as possible.