<p>The identifier or Amazon Resource Name (ARN) for the source DB cluster parameter group. For information about creating an ARN, see <a href="https://docs.aws.amazon.com/neptune/latest/UserGuide/tagging.ARN.html#tagging.ARN.Constructing"> Constructing an Amazon Resource Name (ARN)</a>.</p> <p>Constraints:</p> <ul> <li> <p>Must specify a valid DB cluster parameter group.</p> </li> <li> <p>If the source DB cluster parameter group is in the same Amazon Region as the copy, specify a valid DB parameter group identifier, for example <code>my-db-cluster-param-group</code>, or a valid ARN.</p> </li> <li> <p>If the source DB parameter group is in a different Amazon Region than the copy, specify a valid DB cluster parameter group ARN, for example <code>arn:aws:rds:us-east-1:123456789012:cluster-pg:custom-cluster-group1</code>.</p> </li> </ul>

<p>The identifier for the copied DB cluster parameter group.</p> <p>Constraints:</p> <ul> <li> <p>Cannot be null, empty, or blank</p> </li> <li> <p>Must contain from 1 to 255 letters, numbers, or hyphens</p> </li> <li> <p>First character must be a letter</p> </li> <li> <p>Cannot end with a hyphen or contain two consecutive hyphens</p> </li> </ul> <p>Example: <code>my-cluster-param-group1</code> </p>