If you'd like to disable DAT but still want to keep the old loads posted and just stop posting the new ones, it would just be Auto-post never;

If you no longer want anything to be posted, “Pull Down All Loads” by going to your Marketplace Syndication settings, then click Pull Down Loads. This will pull down all loads posted to DAT, then you can go ahead and toggle the green Enable botton to disable it.

And with "Auto-post" set to "Never", the loads that are sent to Parade are not going to be posted automatically to the Syndication Partners.

If you were to remove all your loads from DAT and post them again, you can select “Pull Down All Loads”, this would pull down the loads from the loadboard and once you decide to repost them again you can click on "Repost all loads" they would be entirely reposted on it.

Go to Marketplace Syndication Settings in top right corner 3 dots

Then go to DAT and "Pull Down All Loads"

Wait for loads to come down. Once completed, then choose from "All New Loads" to "Never".

When done choose and you would like to re-enable the posting select "Repost All Loads"

And update the field from "Never" to "All New Loads" once again.