# Amazon Cognito Sync

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This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-cognito-developer-guide.git)
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## Push sync

* **Note**\
  Push sync is not supported for JavaScript, Unity, or Xamarin.

## Amazon Cognito Events

* **Note**\
  When using Amazon Cognito events, you can only use the credentials obtained from Amazon Cognito Identity. If you have an associated Lambda function, but you call `UpdateRecords` with AWS account credentials (developer credentials), your Lambda function will not be invoked.