The row/column limit error you're experiencing might be due to the overall column limit in Clay tables. Each table has a limit of 70 columns, with up to 30 (or 40 if you implement a waterfall) being action or integration columns. Even if you've deleted all enrichment waterfalls, you may still have other columns that are contributing to this limit. It's also worth noting that there's a separate 30-column limit for action (enrichment) columns per table, which applies even on higher-tier plans. If you need further assistance with your specific table setup, please request human assistance by clicking on "Talk to a person".
Got it, I think you might have what you need here, so I'll tentatively mark this closed for the moment. Please keep in touch if you hit other roadblocks!
Troubleshooting Row/Column Limit Errors in Data Management | Clay