What are the language constants intended for?

[Junhyung Ki]

Hello,

We are currently using GoogleAds to get historical search volume data for a list of phrases and we do the following steps:

```

String keywordPlan = createKeywordPlan();
String keywordPlanCampaign = createKeywordPlanCampaign(keywordPlan, culture);
String keywordPlanAdGroup = createKeywordPlanAdGroup(keywordPlanCampaign);
...
return keywordPlan;

```

when creating keywordPlanCampaign, we set the language of the campaign which is meant to set the target language for the keyword plan campaign according to this.

However, when I tried to retrieve search volume for "ferienwohnung frigiliana" and compare the two cases where setting the language as German (1001) and Korean (1012).

It seems that the results are the same as shown below:

German(1001)

Korean(1012)

From this I can only guess GoogleAds doesn't care about which language we use for the keyword plan but only returns the universal search volume for each keywords phrase and the set language is meant for some metrics other than search volume.

Am I correct?
If not, what are these language constants meant for and what are the impacts when setting them differently?

[Google Ads API and AdWords API Forum]

Reposting the last inquiry (https://groups.google.com/g/adwords-api/c/KBirg9VMNYs) from the forum as it wasn't routed to our support queue.

Cheers,
Peter Laurence
Google Ads API Team

[Google Ads API Forum Advisor]

Hi Junhyung,

Thank you for reaching out to our API support team.

Could you confirm if you have also performed a similar request using the UI's Keyword Planner? If the results are similar then, the API should be working as intended.

However, if the results of the API and UI are different, and so our team can investigate further regarding the similar results you retrieved, could you also provide the complete request and response logs, and request-id of both our German and Korean language requests? 

If you haven't yet, logging can be enabled by navigating to the Client libraries > Your client library (ex. Java) > Logging documentation. You may then send the requested information via the Reply privately to author option. If this option is not available, you may send the details directly to our googleadsa...@google.com alias instead.

In addition, if you wish to learn more as to how a language constant filter affects your results, then the Google Ads Product Support team should be better equipped in providing insights since the API feature only mirrors the Keyword Planner of the UI / Product. You may then reach their support team via this link.

Best regards,

Peter Laurence Google Ads API Team

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