To implement more than 3 tracker (click tracker, Impression tracker, Ad verification pixel like IAS, DV pixel etc..) in a standard banner creative we have to use the standard creative template in the GAM.
Below are the steps:
1. Go to the creative section and select new creative option.
2. Then go to the Standard Creative Template section and select the Image banner with optional third party tracking.

3. Provide name for the creative and uplaod the creative file under the image file section.

4. Don’t forget to provide the correct creative dimension in the Image width and height column, if you missed providing the width and height. It will display blank while rendering in the site’s ad slots.
5. Implement the click tracker in the click through URL box,

6. Place the Impression tracker in the third party imp tracker section, you can provide 2 impression tracker at a same time. Don’t forget to inser the macro for the Imps tracker.

7. If you have to implement the third party ad verification partner pixel ( like IAS, MOAT, DV, etc..) you can implement them in the safecount survey URL box,

That’s it, then you can save the creative and take the order and line items live.
