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#ask-questions
Title
# ask-questions
l

limited-hospital-80763

11/17/2023, 11:16 AM
Hello! I noticed my experiment has no data tracked and from updating I get error code "Unknown experiment assignment table - anonymous_id". Do you know what's the issue and where I can find out how to fix it?
r

rhythmic-agent-34208

11/17/2023, 11:16 AM
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b

brief-honey-45610

11/17/2023, 2:54 PM
Hi Katharina, thanks for reaching out. The anonymous_id is actually a column in the table, not the table name. Could you send me a screenshot of the Experiment Assignment Query so I can help further?
You can find this in the Data Sources tab (select the appropriate data source and then the intended experiment)
l

limited-hospital-80763

11/17/2023, 3:08 PM
@brief-honey-45610 You mean this one?
b

brief-honey-45610

11/17/2023, 3:10 PM
Yes! Is there a button that says “view query” just below that? Could you please send a screenshot of the whole page so I can see what you’re seeing?
l

limited-hospital-80763

11/17/2023, 3:13 PM
okay gotcha. Here's the code
b

brief-honey-45610

11/17/2023, 3:33 PM
Hmm, interesting. The anonymous_id doesn’t appear anywhere in the Experiment Assignment Query. I believe there may be a mistake with how the data source is connected. The error leads me to believe that GrowthBook is trying to access a table called anonymous_id. Could you please send a screenshot of the “Edit Connection Info” and “View Schema Browser” tabs?
l

limited-hospital-80763

11/17/2023, 3:38 PM
these?
b

brief-honey-45610

11/17/2023, 4:08 PM
Yes, thanks!
Let me run this by one of my colleagues to confirm what I think is happening. I'll post an update here as soon as I can.
r

rhythmic-agent-34208

11/17/2023, 8:00 PM
Hi Katharina, one more thing — could you please send a screenshot of the GrowthBook-related code?
l

limited-hospital-80763

11/21/2023, 12:57 PM
I'll sent over dm 🙂
b

brief-honey-45610

11/21/2023, 3:55 PM
I see it, thanks! Also got your email
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