Sagemaker Canvas error with maximum characters limit

Hello, I am trying to utilize the automl capabilities in Sagemaker Studio. When trying to import my data, I get the following error: One or more records in your CSV dataset exceed the maximum allowed character limit of 1,048,576

I have tried converting my CSV to a parquet file as well. My feature space is very large ~700,000 points and I cannot reduce it further. Is this error related to service quotas? Or is there something else I can do? Thanks