I opened a new site recently and added it to my adsense account. I set up a skyscraper and text links and got the codes. The skysraper has been displaying since day 1 but not the text ad but that might be because I'm in Portugal and there's nothing to display. Adsense Performance reports shows requests for the text ad however. Anyway today I noticed today in "my ads" that nothing was showing in links for my new site. I honestly don't remember if I just grabbed the text code from one of my other sites. Anyway I set up a new link ad and got the code for it. The only difference between the two codes, the one that I must have grabbed and the new one that I set up is the data-ad-slot code. Do I need to change the code on about 10 posts that I already used the old code on. I don't know what the data-ad-slot is used for. Thanks for any help, Michael