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title: DataLens On-premises error ERR.DS_API.US.VALIDATION_FAILED
description: >-
  This page describes the Invalid input data: validation failed DataLens
  On-premises error.
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# [DataLens On-premises] Invalid input data: validation failed

`ERR.DS_API.US.VALIDATION_FAILED`

Error validating the requested object ID, e.g., when requesting a connection or dataset with an invalid ID.

Check and correct the requested object ID.

You can copy object IDs from the relevant object's menu or in navigation by clicking **Copy ID**. The ID will be saved to the clipboard.