Hello,
Since 2015-09-18 I have a problem with TargetIdeaService and language filter (The problem is the same in the keyword planner tool in adwords web interface).
I use the TargetIdeaService in order to get Search Volume for keywords. For example, I retrieve search volume for the keyword "havaianas suisse", location = switzerland, language = "french". Before 2015-09-18 the api sent me the last 12 months with search volume. After the 2015-09-18, the api send me no data at all.
If I remove the language filter, I get the 12 last months, but it's not relevant for my purpose.
I'm looking for the reason of this change of behaviour, anybody as some informations ?
Regards,