I’ve implemented *Custom Conversion Variables* (e.g., tag: store_location) 
for website conversions. In the Google Ads UI I can segment under *Segments 
→ Conversions → Custom variables* and see values as expected.

I’m trying to get the same breakdown programmatically—ideally via *BigQuery 
Data Transfer (Custom report with GAQL)*, or otherwise via the *Google Ads 
API*—but I can’t find GAQL fields that expose the custom variable 
*name/value* as segments.

What I’ve tried (v21):

   1. 
   
   Works (no custom-variable segment):
   
SELECT segments.date, campaign.id, campaign.name, 
segments.conversion_action, segments.conversion_action_name, 
metrics.conversions, metrics.conversions_value FROM campaign WHERE 
segments.date BETWEEN '2025-08-01' AND '2025-08-31' ORDER BY segments.date, 
campaign.id 

   2. 
   
   Fails when I try to add custom-variable segments (examples I attempted):
   
..., segments.conversion_custom_variable, 
segments.conversion_custom_variable_value FROM campaign 

Validator errors:

   - 
   
   'segments.conversion_custom_variable' is not a valid field in the SELECT 
   clause when 'campaign' is the resource in the FROM clause.
   - 
   
   'segments.conversion_custom_variable_value' is not a valid field in the 
   SELECT clause when 'campaign' is the resource in the FROM clause.
   

   3. 
   
   I can list the variables themselves:
   
SELECT conversion_custom_variable.resource_name, 
conversion_custom_variable.id, conversion_custom_variable.name, 
conversion_custom_variable.tag, conversion_custom_variable.status FROM 
conversion_custom_variable 

…but I don’t see a way to *segment conversions by those variables* in GAQL.

*Goal output (daily):*
date, campaign_id, campaign_name, custom_variable_tag, 
custom_variable_value, conversions, conversions_value 

(Conversion action name would be a bonus.)

Questions:

   - 
   
   Is there a GAQL-supported way to segment conversions by *Custom 
   Conversion Variables* (name/value)?
   - 
   
   If not currently supported in GAQL/BQ DTS, what’s the recommended 
   programmatic export? (e.g., Google Ads UI scheduled report → Google Sheets 
   → BQ feels like a workaround.)
   - 
   
   Any timeline or feature request I can track for exposing this segment 
   via GAQL?
   
Thanks in advance!

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  • GA... Jason Spanomanolis
    • ... 'Google Ads API Forum Advisor' via Google Ads API and AdWords API Forum

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