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Payload Limits

You should not send more than 15MB of data in a single request. If you need to work with more data, use stashing to upload the data in 15MB chunks.

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Row Limits

Even when using stashing, there are limits to the number of rows you can work with in a single request. These limits are approximate and depend on the size of the rows in your dataset.
EndpointRow Limit
Create Table8m
Overwrite Table8m
Add Rows to Table250k