name : tag-resource.rst **To add tags to an existing Lambda function** The following ``tag-resource`` example adds a tag with the key name ``DEPARTMENT`` and a value of ``Department A`` to the specified Lambda function. :: aws lambda tag-resource \ --resource arn:aws:lambda:us-west-2:123456789012:function:my-function \ --tags "DEPARTMENT=Department A" This command produces no output. For more information, see `Tagging Lambda Functions <https://docs.aws.amazon.com/lambda/latest/dg/tagging.html>`__ in the *AWS Lambda Developer Guide*.