| Name | Type | Description | Required |
|---|
| Action | String | The action to which the Custom element applies. | Yes |
| After | String | The name of the standard or custom action after which this action should be performed. Mutually exclusive with Before, OnExit, and Sequence attributes | |
| Before | String | The name of the standard or custom action before which this action should be performed. Mutually exclusive with OnExit, After, and Sequence attributes | |
| OnExit | ExitType | Mutually exclusive with Before, After, and Sequence attributes | |
| Overridable | YesNoType | If "yes", the sequencing of this action may be overridden by sequencing elsewhere. | |
| Sequence | Integer | The sequence number for this action. Mutually exclusive with Before, After, and OnExit attributes | |