Data discrepancy between Google Ads API and Keyword planner UI

Raskrutka

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Aug 27, 2020, 6:24:34 AM8/27/20

to AdWords API and Google Ads API Forum

Hi,

For the last two weeks we saw data discrepancy between Google Ads API and Keyword planner UI.

For example, for keywords "iphone" and "apple" Google Ads API stopped returning data, while Keyword Planner UI shows the search volume for them.

Is this a bug?

Thanks.

Google Ads API Forum Advisor Prod

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Nov 16, 2020, 1:42:05 PM11/16/20

to m...@raskrutka.com.ua, adwor...@googlegroups.com

Hi Raskrutka,

Apologies for the late response. Are you still seeing the discrepancies that you mentioned previously? If so I can try to help figure out where the discrepancies are coming from.

Best,
Ben Karl, Google Ads API Team

ref:_00D1U1174p._5004Q23v6Vp:ref

Jessica Capuozzo

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Jul 3, 2025, 11:54:20 AMJul 3

to Google Ads API and AdWords API Forum

Hi, we experiencing a significant discrepancy between the data we retrieve from the Keyword Planner UI and the Google Ads API.

When using the Keyword Planner directly through the web interface (as shown in the image below - URL https://ads.google.com/aw/keywordplanner/plan/keywords/historical) and we see various keywords with high search volumes.

Screenshot from 2025-07-03 16-00-19.png

However, when we query the same data via the Google Ads API, we only receive a single keyword with a volume of 10.

Using the API call: https://developers.google.com/google-ads/api/rest/reference/rest/v20/customers/generateKeywordHistoricalMetrics With this payload:

const payload = {
keywords: [
'coupon code for european wax center',
'discount code for european wax center',
'promo code for european wax center',
'european wax center code',
'european wax center coupon',
'european wax center coupon code',
'european wax center coupon codes',
'european wax center coupons',
'european wax center discount',
'european wax center discount code',
'european wax center discount code us',
'european wax center discounts',
'european wax center e coupon',
'european wax center free shipping',
'european wax center free shipping code',
'european wax center money off',
'european wax center online code',
'european wax center online discount',
'european wax center online discount code',
'european wax center online promo',
'european wax center online promo code',
'european wax center promo',
'european wax center promo code',
'european wax center promo code us',
'european wax center promo codes',
'european wax center promotion',
'european wax center promotion code',
'european wax center promotional',
'european wax center promotional code',
'european wax center student discount',
'european wax center student discount code',
'european wax center voucher',
'european wax center voucher code',
'european wax center.com discount',
'european wax center.com discount code',
'european wax center.com promo code',
'code european wax center',
'codes european wax center',
'coupon code european wax center',
'coupon codes european wax center',
'coupon european wax center',
'coupons european wax center',
'discount code european wax center',
'discount codes european wax center',
'discount european wax center',
'discounts european wax center',
'offer code european wax center',
'offer codes european wax center',
'promo code european wax center',
'promo codes european wax center',
'promo european wax center',
'promos european wax center',
'promotion code european wax center',
'promotion codes european wax center',
'promotional code european wax center',
'promotional codes european wax center',
'voucher code european wax center',
'voucher codes european wax center',
'european wax center codes',
'european wax center discount codes',
'european wax center offer code',
'european wax center offer codes',
'european wax center promos',
'european wax center promotion codes',
'european wax center promotional codes',
'european wax center voucher codes',
],
geoTargetConstants: ['geoTargetConstants/2840'],
keywordPlanNetwork: 'GOOGLE_SEARCH',
historicalMetricsOptions: {
includeAverageCpc: true,
yearMonthRange: {
start: {
year: 2023,
month: 'JULY',
},
end: {
year: 2025,
month: 'MAY',
},
},
},
}

Could you please explain why there is such a large discrepancy in the reported keyword volumes between the UI and the API?
Are there any specific limitations, settings, or parameters that I might be overlooking when using the API that would cause this difference?

I would appreciate any guidance or troubleshooting steps you can provide to resolve this issue and ensure consistent data retrieval across both platforms, interface and API.

Thank you for your time and assistance.

Regards,
Jessica

Google Ads API Forum Advisor

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Jul 3, 2025, 4:33:11 PMJul 3

to jessica....@bravosconto.it, adwor...@googlegroups.com

Hi,

Thank you for reaching out to the Google Ads API support team.

I understand that you are finding discrepancy between the data retrieved from the Keyword Planner UI and the Google Ads API. Could you please provide us with the uncropped UI screenshot(with visible customer Id) and the complete API logs (request and response with request-id and request header) generated at your end.

If you are using a client library and haven't enabled the logging yet, I would request you to enable logging for the specific client library that you are using. You can refer to the guides Java, .Net, PHP, Python, Ruby or Perl to enable logging at your end. For REST interface requests, you can enable logging via the curl command by using the -i flag.

You can send the details via Reply privately to the author option, or direct private reply to this email.

Thanks,

Google Ads API Team

Feedback
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[2025-07-03 20:32:17Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q023v6Vp:ref" (ADR-00045230)

Google Ads API Forum Advisor

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Jul 4, 2025, 12:11:33 PMJul 4

to jessica....@bravosconto.it, adwor...@googlegroups.com

Hi,

With regard to your concern, I am checking with the rest of our team and one of our colleagues will reach out to you once we have an update.

Thanks,

Google Ads API Team

Feedback
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[2025-07-04 16:10:47Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q023v6Vp:ref" (ADR-00045230)

Jessica Capuozzo

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Jul 4, 2025, 12:46:18 PMJul 4

to Google Ads API Forum Advisor, adwor...@googlegroups.com

Hi there, thanks for your help. These are all the requested informations:

Screenshot:

cURL API call:

curl --location 'https://googleads.googleapis.com/v20/customers/9163072452:generateKeywordHistoricalMetrics' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer TOKEN' \
--header 'login-custAPI call in omer-id: 6027288496' \
--data '{

"geoTargetConstants": [
"geoTargetConstants/2840"
],
"keywordPlanNetwork": "GOOGLE_SEARCH",
"historicalMetricsOptions": {
"includeAverageCpc": true,
"yearMonthRange": {
"start": {

"year": 2024,
"month": "JUNE"

},
"end": {
"year": 2025,
"month": "MAY"
}
}
}
}'

API response:

{
"results": [
{
"text": "promo code for european wax center",
"keywordMetrics": {
"monthlySearchVolumes": [
{
"month": "JUNE",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "JULY",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "AUGUST",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "SEPTEMBER",
"year": "2024",
"monthlySearches": "0"
},
{
"month": "OCTOBER",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "NOVEMBER",
"year": "2024",
"monthlySearches": "0"
},
{
"month": "DECEMBER",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "JANUARY",
"year": "2025",
"monthlySearches": "0"
},
{
"month": "FEBRUARY",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "MARCH",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "APRIL",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "MAY",
"year": "2025",
"monthlySearches": "0"
}
],
"avgMonthlySearches": "10"
}
},
{
"text": "coupon code for european wax center"
},
{
"text": "european wax center discount code us"
},
{
"text": "european wax center e coupon"
},
{
"text": "european wax center free shipping"
},
{
"text": "european wax center free shipping code"
},
{
"text": "european wax center money off"
},
{
"text": "european wax center online code"
},
{
"text": "european wax center online discount"
},
{
"text": "european wax center online discount code"
},
{
"text": "european wax center online promo"
},
{
"text": "european wax center online promo code"
},
{
"text": "european wax center promo code us"
},
{
"text": "european wax center promotional"
},
{
"text": "european wax center promotional code"
},
{
"text": "european wax center student discount code"
},
{
"text": "european wax center voucher"
},
{
"text": "european wax center voucher code"
},
{
"text": "european wax center com discount",
"closeVariants": [

"european wax center.com discount"
]
},

{
"text": "european wax center com discount code",
"closeVariants": [

"european wax center.com discount code"
]
},

{
"text": "european wax center com promo code",
"closeVariants": [

"european wax center.com promo code"
]
},

{
"text": "code european wax center"
},
{
"text": "codes european wax center"
},
{
"text": "coupon code european wax center"
},
{
"text": "coupon codes european wax center"
},
{
"text": "discount code european wax center"
},
{
"text": "discount codes european wax center"
},
{
"text": "offer code european wax center"
},
{
"text": "offer codes european wax center"
},
{
"text": "promo codes european wax center"
},
{
"text": "promo european wax center"
},
{
"text": "promos european wax center"
},
{
"text": "promotion codes european wax center"
},
{
"text": "promotional code european wax center"
},
{
"text": "promotional codes european wax center"
},
{
"text": "voucher code european wax center"
},
{
"text": "voucher codes european wax center"
},
{
"text": "european wax center offer code"
},
{
"text": "european wax center offer codes"
},
{
"text": "european wax center promotion codes"
},{
"results": [
{
"text": "promo code for european wax center",
"keywordMetrics": {
"monthlySearchVolumes": [
{
"month": "JUNE",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "JULY",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "AUGUST",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "SEPTEMBER",
"year": "2024",
"monthlySearches": "0"
},
{
"month": "OCTOBER",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "NOVEMBER",
"year": "2024",
"monthlySearches": "0"
},
{
"month": "DECEMBER",
"year": "2024",
"monthlySearches": "10"
},
{
"month": "JANUARY",
"year": "2025",
"monthlySearches": "0"
},
{
"month": "FEBRUARY",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "MARCH",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "APRIL",
"year": "2025",
"monthlySearches": "10"
},
{
"month": "MAY",
"year": "2025",
"monthlySearches": "0"
}
],
"avgMonthlySearches": "10"
}
},
{
"text": "coupon code for european wax center"
},
{
"text": "european wax center discount code us"
},
{
"text": "european wax center e coupon"
},
{
"text": "european wax center free shipping"
},
{
"text": "european wax center free shipping code"
},
{
"text": "european wax center money off"
},
{
"text": "european wax center online code"
},
{
"text": "european wax center online discount"
},
{
"text": "european wax center online discount code"
},
{
"text": "european wax center online promo"
},
{
"text": "european wax center online promo code"
},
{
"text": "european wax center promo code us"
},
{
"text": "european wax center promotional"
},
{
"text": "european wax center promotional code"
},
{
"text": "european wax center student discount code"
},
{
"text": "european wax center voucher"
},
{
"text": "european wax center voucher code"
},
{
"text": "european wax center com discount",
"closeVariants": [

"european wax center.com discount"
]
},

{
"text": "european wax center com discount code",
"closeVariants": [

"european wax center.com discount code"
]
},

{
"text": "european wax center com promo code",
"closeVariants": [

"european wax center.com promo code"
]
},

{
"text": "code european wax center"
},
{
"text": "codes european wax center"
},
{
"text": "coupon code european wax center"
},
{
"text": "coupon codes european wax center"
},
{
"text": "discount code european wax center"
},
{
"text": "discount codes european wax center"
},
{
"text": "offer code european wax center"
},
{
"text": "offer codes european wax center"
},
{
"text": "promo codes european wax center"
},
{
"text": "promo european wax center"
},
{
"text": "promos european wax center"
},
{
"text": "promotion codes european wax center"
},
{
"text": "promotional code european wax center"
},
{
"text": "promotional codes european wax center"
},
{
"text": "voucher code european wax center"
},
{
"text": "voucher codes european wax center"
},
{
"text": "european wax center offer code"
},
{
"text": "european wax center offer codes"
},
{
"text": "european wax center promotion codes"
},
{
"text": "european wax center promotional codes"
},
{
"text": "european wax center voucher codes"
}
]
}
{
"text": "european wax center promotional codes"
},
{
"text": "european wax center voucher codes"
}
]
}

As you can see, we query the same data via the Google Ads API, we only receive a single keyword with a volume of 10.

Could you please explain why there is such a large discrepancy in the reported keyword volumes between the UI and the API?
Are there any specific limitations, settings, or parameters that I might be overlooking when using the API that would cause this difference?

I would appreciate any guidance or troubleshooting steps you can provide to resolve this issue and ensure consistent data retrieval across both platforms, interface and API.

Thank you for your time and assistance.

Regards,
Jessica

--

Jessica Capuozzo

Technical Solutions Developer

www.bravo-savings-network.com

EU Headquarters

Via Gramsci 446

Sesto Fiorentino, FI, 50019

Italy

+39 055 0630040

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Los Angeles, CA, 90021

United States

+1 (213) 547 6784

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Jessica Capuozzo

unread,

Oct 21, 2025, 6:26:02 PM (2 days ago) Oct 21

to Google Ads API Forum Advisor, adwor...@googlegroups.com

Hi, I hope this email finds you well. I am writing to follow up on the data discrepancy issue we discussed regarding the Keyword Planner UI and the Google Ads API.

I was wondering if there are any updates or news regarding the investigation into this discrepancy. We are keen to understand the root cause of this issue and find a resolution to ensure consistent data retrieval across both platforms.

Thank you for your continued assistance.

Best regards,

Jessica

Google Ads API Forum Advisor

unread,

5:09 AM (14 hours ago) 5:09 AM

to jessica....@bravosconto.it, adwor...@googlegroups.com

Hi Jessica,

Thanks for reaching out. Unfortunately as I just checked, this issue is still pending the according engineering team's investigation. I have just sent them a request for an update sooner. Once we here from them I will update here.

Thanks,

Da Yang
Google Ads API Team

Feedback
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