Here is the instructions from postback settings to tracking settings for each network of GoogleAdWords (GDN, Google Search, TrueView and UAC). This is the recommended procedures but you can do the tracking settings for each campaign first.
1. Issue a conversion ID/label.
2. Do postback settings.
3. Do tracking settings for each campaign.
Here is the step (2) for postback settings.
- Postback settings
1. Click "Tools" > "Conversions" > the name of conversion actions you created.
2. Click "Edit settings".
3. Put the URL you got from us in "Psotback URL" section and click "Save".
For the next step, do tracking settings for each campaign (3).
*Steps for GoogleAdWords depend on networks and OS.
Refer to the following URL and do the tracking settings for the desired network.