Issues with Sandbox Mode: Failed to Create Sandbox Table Error

Stein V. · 2025-11-30T09:21:37.458Z

Hey everyone, I’m having a hard time getting Sandbox mode working. After clicking sandbox i see a message “failed to create sandbox table”. After refreshing the page I do see a Sandbox table was created but it contains 0 rows. https://app.clay.com/workspaces/777627/workbooks/wb_0t6j4y9cCrh5GhmRhTb/

Issues with Sandbox Mode: Failed to Create Sandbox Table Error | Clay

14 comments

· Sorted by Oldest

Clay Support
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I see you're getting that "failed to create sandbox table" error, but the sandbox is actually being created - it's just showing 0 rows initially. This is expected behavior. [1]
When sandbox mode starts, it should automatically duplicate the top 10 rows from your existing table as samples. [2] Since you're seeing 0 rows, try adding data manually:
Click Actions → Add rows to sandbox, then select how many rows you want and choose either "Top rows" or "Random set" from your main table.
If the error message persists, try clearing your browser cache and refreshing - this often resolves display issues.
Before we dig deeper, have you tried using Sculptor (the AI tool in the top-right corner)? It might help troubleshoot this sandbox setup issue quickly.
Stein V.
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add rows to sandbox doesn’t exist under actions
Clay Support
APP
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The interface has been updated. Instead of "Add rows to sandbox" under Actions, look for an "Add test data" button. [1]
Click that button, enter how many rows you want, and choose either "Top rows" or "Random set" from your All data tab.
Alternatively, you can go to your All data tab, select specific rows, then click "Add X rows to test data" in the top right.
Clay Support
APP
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Is that what you were looking for?
Stein V.
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Human please
Clay Support
APP
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I understand, I’m connecting you to one of our human agents who can assist you further.
Clay Support
APP
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Our support team has got your message and we'll get back to you soon! We're currently outside of our standard office hours (9 AM to 9 PM EST, Monday through Friday), so it may take a little longer for us to respond.
If you’re dealing with a specific table, drop the URL below so we can help you quicker. Otherwise, someone from our team will be in touch soon!
image.png(93 kB)
Stein V.
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https://app.clay.com/workspaces/777627/workbooks/wb_0t6j4y9cCrh5GhmRhTb
Sayli G.
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Stein - Sorry for this, it looks like we've got a bug on our hands. I've escalated this to our engineering team to help look into it. We'll follow up here as soon as we know more!
Stein V.
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Thanks Sayli G.! Any idea on the time frame so we can manage customer expectations?
Sayli G.
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Hey Stein! I can see the engineers are now taking a look. I am unsure of the timeline but will reach out as soon as there is an update.
Stein V.
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Hey Sayli, did you already receive any updates on this ticket?
Stein V.
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Sayli G.
Sayli G.
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Hello Stein, I can confirm that the team is still actively working on it. Unfortunately, I do not have an estimated timeline at this moment. Thank you for your patience.

Clay Support
APP
·
·
I see you're getting that "failed to create sandbox table" error, but the sandbox is actually being created - it's just showing 0 rows initially. This is expected behavior. [1]
When sandbox mode starts, it should automatically duplicate the top 10 rows from your existing table as samples. [2] Since you're seeing 0 rows, try adding data manually:
Click Actions → Add rows to sandbox, then select how many rows you want and choose either "Top rows" or "Random set" from your main table.
If the error message persists, try clearing your browser cache and refreshing - this often resolves display issues.
Before we dig deeper, have you tried using Sculptor (the AI tool in the top-right corner)? It might help troubleshoot this sandbox setup issue quickly.
Stein V.
·
·
add rows to sandbox doesn’t exist under actions
Clay Support
APP
·
·
The interface has been updated. Instead of "Add rows to sandbox" under Actions, look for an "Add test data" button. [1]
Click that button, enter how many rows you want, and choose either "Top rows" or "Random set" from your All data tab.
Alternatively, you can go to your All data tab, select specific rows, then click "Add X rows to test data" in the top right.
Clay Support
APP
·
·
Is that what you were looking for?
Stein V.
·
·
Human please
Clay Support
APP
·
·
I understand, I’m connecting you to one of our human agents who can assist you further.
Clay Support
APP
·
·
Our support team has got your message and we'll get back to you soon! We're currently outside of our standard office hours (9 AM to 9 PM EST, Monday through Friday), so it may take a little longer for us to respond.
If you’re dealing with a specific table, drop the URL below so we can help you quicker. Otherwise, someone from our team will be in touch soon!
image.png(93 kB)
Stein V.
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·
https://app.clay.com/workspaces/777627/workbooks/wb_0t6j4y9cCrh5GhmRhTb
Sayli G.
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Stein - Sorry for this, it looks like we've got a bug on our hands. I've escalated this to our engineering team to help look into it. We'll follow up here as soon as we know more!
Stein V.
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·
Thanks Sayli G.! Any idea on the time frame so we can manage customer expectations?
Sayli G.
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·
Hey Stein! I can see the engineers are now taking a look. I am unsure of the timeline but will reach out as soon as there is an update.
Stein V.
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Hey Sayli, did you already receive any updates on this ticket?
Stein V.
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Sayli G.
Sayli G.
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Hello Stein, I can confirm that the team is still actively working on it. Unfortunately, I do not have an estimated timeline at this moment. Thank you for your patience.