I managed to have my first Google AdSense approval not too long ago. It was quite a challenge. I encountered a problem with "Valuable inventory: Under construction". It was a bit frustrating when I kept getting rejected over and over due to this problem. Google AdSense did not elaborate clearly what exactly was wrong with my website so I had to do a lot of trial and error in order to fix the problem.
Based on my experience, the amount and the quality of posts are two significant factors in order to tackle this problem. Each post doesn't have to be too long, 500-1000 words per post apparently will suffice. I got AdSense approval with 21 published posts with an average 600 words per post. The articles should have certain level of quality and uniqueness.
It shows that advertisers would rather put their ads in a finished website with sufficient contents. AdSense will think that your blog doesn't have enough valuable inventory if it is lacking good posts. You also need to have a recently written article to show that your website is still active.
#Update 11 May 2019: It appears that the number of post may be irrelevant to Adsense approval, one of my blogs which only had 4 published posts was approved, although it did have over 1000 words per post when I applied. This is my second blog in the same Adsense account. It seems that AdSense value quality over quantity.
#Update 14 February 2020: Make sure that there is no broken links in your website. If you are using Blogger, please note that invisible/deleted profile may result in broken links. I also notice that many people who got rejected are using obsolete Blogger template (remember that Google+ is no longer active). You can use https://www.brokenlinkcheck.com in order to check for 404 pages.
Update 11 May 2020: A lot of people who received this type of AdSense policy violation appear to have low quality articles. The contents are usually too short, unoriginal rewrites, low efforts, and have bad grammars. Please learn how to write properly!
Read also: How to Get AdSense Approval for Blogger Domain
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| AdSense Notification After Rejection |
Valuable inventory: Under construction can also happen if you modify your website while it is still being reviewed by AdSense. It may send a signal to AdSense that your blog is still under construction, and thus not ready to display advertisments. DO NOT CHANGE YOUR WEBSITE'S LAYOUT OR THEME AND DO NOT POST OR ADD PAGES DURING ADSENSE APPROVAL WAITING TIME.
I figured this out when they keep rejecting me several times after I did even minor changes to the layout and theme or even just adding a page. It's because Google AdSense would only put ads on a complete website, minor changes would be seen as a sign that your website is not ready.
Once you have published 15-20 articles with adequate amount of words, go take a break from posting for 3-4 days so that Adsense will be able to review your website properly.
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| Successful Adsense Application |
Another thing to consider is to choose a mobile friendly theme for your website. My blog is responsive and it can be displayed properly in phone, tablet, or computer screen. Make sure that your website can be navigated easily. Try to add Home, About Me and other necessary pages.
You need to make sure that your website is as user-friendly as possible. Bad
user interface may also contribute to Valuable inventory: under construction
violation. Your visitor should be able to read your article easily. Therefore,
you have to use user-friendly color scheme and proper fonts.
I had to wait around 2 weeks at first when I used classic theme, but after I
changed it to a mobile friendly theme - after I got rejected for changing the
theme, of course - AdSense accepted my application within 3-4 days. Although
don't quote me on this one, since it's only based on my one time observation
but it's still worth a try.
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| Responsive Theme: Mobile View |
Incorrect usage of redirection can be fatal to your website visibility. I used to redirect my main page incorrectly only to find out that Google bot crawler won't index my website so it did not show up in Google Search result. Check if your website is indexed by Google by typing site:https://yourwebsiteaddress.com.
AdSense does not clearly mention whether you need to have your website indexed or not so that you can get approval. However AdSense does stated, in its eligibility requirement, that your blog needs to be able to attract an audience. To ensure that your blog is properly managed and can be found on Google by your potential audience, go register to Google Search Console.
Make sure that your website can be crawled by AdSense. You can check whether AdSense crawler, User-agent: Mediapartners-Google, can scan your pages in your website's robot.txt. You don't have to worry about this if you're using Blogger website though. By default, Blogger robot.txt is fine as it is. In fact, editing robot.txt in Blogger may lead to crawl error if you don't know what you are doing for sure.
It will not be easy and require a lot of patience if you are not lucky, but remember that you can keep re-applying even though AdSense told you that your website has Valuable inventory: Under construction problem. After you gain AdSense's approval, make sure that you do not violate Google Adsense Program Policies! Otherwise your hard work to get AdSense approval would be all for nothing.
In conclusion, in order to solve Valuable inventory: Under construction, you have to make sure that you have adequate amount of good quality articles, do not change your blog layout and theme, don't post or add new pages during the waiting period, and make sure your website layout is up to date and mobile friendly. Try to reapply then keep writing articles while you're waiting for your application to be accepted, keep your website growing!
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