# Fields for a splice\$1insert message
<a name="schedule-fields-for-splice_insert"></a>

This table shows the fields that apply for an action to insert a splice\$1insert SCTE 35 message. 


| Field | Description | 
| --- | --- | 
| Action type | SCTE 35 Splice Insert. | 
| Action name | A name for this splice\$1insert action. For example, splice\$1insert actions could be numbered sequentially, restarting every day or every month.  | 
| Start type  | Fixed or Follow or Immediate.  | 
| Date and time |  If the **Start type** is **Fixed**, specify the UTC start time for the splice\$1insert action. The time should be at least 15 seconds in the future. Note that the time is the wall clock time, not the timecode in the input.  | 
| Reference action name |  If the **Start type** is **Follow**, choose the input to follow. The dropdown list shows all existing input switches that are file inputs. Remember that a SCTE 35 action can follow input A only if input A is a file input and the source end behavior for input A is *continue*. For information about these switching rules, see [Fixed, immediate, and follow switches](ips-switch-types.md).  | 
| Follow point | If the Start type is Follow, complete this field. The follow point is always End, to indicate that the switch will occur when the input in Reference action name has finished. | 
| Splice event id | The ID for the splice event. Enter an ID for the splice event that is unique among all scheduled and active splice\$1insert messages in this channel. A message is active if the schedule action is in process in the channel and has not completed.  | 
| Duration | The duration for the splice event. Complete in one of these ways:[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/medialive/latest/ug/schedule-fields-for-splice_insert.html) | 

The splice\$1insert inserted in the transport stream will have the following:

```
      segmentation_event_cancel_indicator = 0 
      out_of_network = 1
      duration_flag = 1
      duration = the specified time
```

Or

```
      segmentation_event_cancel_indicator = 0
      out_of_network = 1
      duration_flag = 0
```