" GTM no-script code not found: possibly missing or not in " I test to incorporate the script inside the header.tpl but there's no segment. Update: Difficulty was solved. I just use another addon and customise hook to get it done. Thanks Ali Edited November 21, 2018 by QNP (see https://kingbookmark.com/story17851824/indicators-on-hreflang-tags-wordpress-you-should-know