Follow the steps below to enable 3Play Media to automatically send your captions back to your Kaltura account.

Step 1- Navigate to your linked Kaltura account

Click on the Upload tab located on the top of the page followed by Linked Accounts.  
You should see your Kaltura account as a choice here if you have successfully linked this account to your 3Play Media account.
Click on your linked Kaltura account.

Step 2- Click Settings

If you clicked on your linked Kaltura account you will be directed to a page listing your Kaltura videos. 
Click on Settings.

Step 3- Turn Postback Data on

When you have turn on Postback Data, click Update to save your settings.