10 Things Nobody Tells You About Google AdWords There is a lot to learn about this wildly popular online advertising medium.

While there are hundreds of Google how-to guides online, written both by savvy bloggers and Google itself, the advertising giant has a few skeletons in its closet that are rarely talked about. After all, Google AdWords is the ever popular advertising platform - or is it?

1. Google AdWords is no longer working as it did. Marketers from all over the world have been noticing that conversion tracking on AdWords is becoming increasingly more difficult. People need to look a the whole ROI picture.

You should be focusing on the overall business profitability as well as Google's conversion tracking values. What happens most of the times is that users might be visiting your site while they are at work or on their phones while commuting and then eventually convert from home.

It could also happen that they will convert after clicking on an remarketing ad on social media. All of this can cause a problem attributing your conversion to a given marketing channel. The online market has become more complex and you need to consider all of that in the equation.

Customers no longer purchase right away but compare prices and providers for several days on different platforms and networks before taking a final decision. This is the number one reason cross-channel remarketing has become so popular so quickly. Cross-channel remarketing is advertising to users who have been on your website but did not convert on more than one channel, for instance Google, Twitter and Facebook.

Related: 3 Things You Probably Don't Know About Google Adwords

2. Google manages your account free for three months. Official Google Partners have the possibility to offer their new clients three months of free management directly by the Google sales representatives. Naturally, this is free of charge and could save you the agonizing first couple of weeks to see whether your advertising campaign will be profitable. You still have to pay for the advertisement cost but save yourself a potentially substantial management fee and minimum six months commitment.

3. Not all new features are right for your business. Google continuously rolls out new features but what are the ones you should apply to your account? All of them is not the right answer. For instance, let's assume that the main goal of your campaign is to generate calls via mobile traffic and that you do not care about desktop clicks. In that case, even though you might suffer from a quality score point of view, you would rather prefer not to have sitelinks extensions.

A good extension for you would be Callouts Extensions, which allow to have extra strings of texts but with no additional links to the site. Make sure to analyze your unique needs and make use of the extensions that make the most sense for you considering both advantages and disadvanteges.

4. Google offers customized Google+ solutions. Alicia Keys launched her recent album with a customized Google+ hangout solution that Google itself created in collaboration with her and her team. It was a success for both, as was a custom shoppable Google+ hangout for a major clothing store that was able to insert a personalized product feed in the hangout screen.

The bad news? You need a relatively large budget and an excellent Google Partner who can connect you to the right people in Google. The good news? Some of those customized solutions become private betas so if you know they exist, you can make a request to apply it to your campaigns.

5. You can use Google Hangouts as your own mini QVC. Did you know that you can sell the items of your ecommerce directly via a Google Hangout? This feature is a hidden gem not many advertisers know about. The reason is that you won't set up the hangout directly from the adwords interface but you first need to create it and then use the URL of the hangout to promote it while you are on air (You can also promote it via your webiste through a custom landing page days before the hangout to create some fuzz).

Related: Common Google AdWords Mistakes and How to Avoid Them

6. Google helps you generate banners for the display network. On Google, you can run campaigns on the Search or on the Display Network. Just to quickly recap, search campaigns show your ads upon a search query, while display campaigns place your text ads or banner on designated advertising slots on websites. One of the reasons why many small budget startups do not start display advertising is because they would need to hirer a web designer to create banners unless they want to be limited to text ads.

In order to help you generate banners fast and cost effectively, Google provides a free tool within AdWords, that automatically generates banners based on one of your existing text ads. You can customize it after to make it look a little less android and a little more you which makes it a great tool for any advertiser or business owner.

7. Video remarketing works with more than just YouTube. Remarketing, as mentioned above, is a way to target visitors who did not convert. Since AdWords was integrated with YouTube, online video campaigns have become a popular tool for all types of businesses. Something that is often overlooked is that video remarketing campaigns not only exist but that they can also be run on the Google display network instead of Google.

In brief, your 30 second video might show up on a niche website that is closely related to your topic and increase your conversion rate by much more than by being placed on YouTube with the risk to be skipped or overlooked.

8. If you have a choice, pick volume over margins. Google advertises AdWords primarily as a tool that any business can use because there is no minimum budget. Even two dollars a day are enough to get started and as long as there is a return on investment, we can check it off the list as mission accomplished. Something that is a common mistake among first time advertisers and small businesses is the assumption that high margins beat high volume.

You have the budget and the right marketing infrastructure, generating more sales while sacrificing some margins is always more convenient until the extra revenue you will be making is higher than the total loss in margins.

9. Mobile campaigns can get you desktop clicks, anyway. Google AdWords used to offer differentiation by device. Much to the despair of marketers, AdWords is no longer offering this feature but offers so called mobile campaigns instead. The issue is that there is no possibility to target just mobile. Yes, you can increase the mobile bid but there is no way to exclude desktop. In the worst case, you are increasing the mobile bid and end up paying for desktop clicks that are not only overpriced but also useless.

10. All AdWords certifications are linked to your email address. At first sight, there is nothing wrong with that but couple of issues arising over time. If an individual passes the certifications while working at an agency, the email address used will most likely be the Gmail business apps address of the agency. As soon as the employee changes agency, the certificate is valid but useless, since the agency will delete the address. Google offers the option to link several email addresses to keep the certification in place, but let's be honest, what company keeps email addresses of employees that have moved on to a competitor just to keep them certified for two years?

Related: Set up Your Google AdWords Campaign in 9 Steps

Editors note: This article was revised to correct errors in the earlier version.