I set these campaigns up about a week ago and have good impressions/clicks on about half of them. What I don't understand is getting ZERO impressions for very big languages such as Portuguese, Arabic and Japanese. These campaigns have correct, relevant keywords, sufficient daily budget, correct language and region settings, yet show not a single impression after a week.
Do certain languages just take longer to kick in? For example, I noticed I had about 3k impressions for Spanish yesterday, yet have had over 30k impressions already today, so I get the feeling each language takes longer to be ramped up to full speed.
I would appreciate hearing from others who have had experience of using multi lingual campaigns or some explanation as to why certain languages are hard to get impressions for.
I've learned since then to check, confirm, then check again.