> For the complete documentation index, see [llms.txt](https://docs.growlytics.in/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.growlytics.in/integration/other/upload-customers-using-csv.md).

# Upload Customers using CSV

You can upload CSV files to create or update user information as well as to pass their attributes. To use this feature, go to Customers page and click on "Upload CSV" button.

{% hint style="warning" %}
File upload restrictions

* Maximum 25 columns allowed.
* If any of the row value does not match with its data type, upload will fail.
* Maximum 10,000 rows allowed in a single upload.
  {% endhint %}