Now that you have created a VMD file that defines a scripted transformation that checks whether a duplicate message has been sent, the next step is to modify your Iguana channel to use this VMD file as a filter. To do this:

• From the Iguana Dashboard, click on the name of the channel through which the messages are being sent.

• Click Edit Channel. (If the channel is running, you must stop it to be able to edit it.)

• Select the Filter tab.

• Select the Use filter check box.

• In the Full filter VMD path, type the path and filename of the VMD file you just created.

• From the Transformation mode list box, select Scripted transformation.

• In the Configuration name field, type default. The Filter screen should now look something like this:

• Click Save Changes to save the changes to the channel.

Your channel will now use the VMD file you created in the previous section to check whether any duplicate messages have been sent. Any warnings that are generated by this VMD file will appear in the Iguana logs. The next step is to create an email notification rule that notifies you when a warning appears.

	For more information on using filters in Iguana channels, see Configuring the Filter.