Hi there,
We’re blending Shopify and GA4 data in Looker Studio. It was working fine about 8 hours ago, but when we refreshed the page around 3 hours ago, we started getting this error:
“Invalid combination of metrics and dimensions
Report configuration issue – please select a valid combination of dimensions and/or metrics in the property panel.”
Error ID: 9f9989e3
What’s confusing is that we haven’t made any changes.
At the moment, the blended data only uses GA4 fields: item name, date, and sessions — nothing from Shopify. So the setup should still be valid. We also tried changing the join key — first using just item name, then just date — but the same error keeps appearing.
We double-checked the Shopify data in Google Sheets: no edits, no updates, and no changes in the version history. GA4 looks mostly unchanged too, except for one thing — purchaserConversionRate now shows as purchaser rate. That’s the only difference we’ve noticed, though we’re not sure if it’s related.
For reference, our join keys are:
• GA4: item name + date
• Shopify: product title + day
Both datasets use the same date format: DD/MM/YYYY.
Could this be a temporary Looker Studio issue, or is there something subtle we might be missing?
We’d really appreciate any insight or suggestions. Thanks so much for your time.
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