Hello,
To add a latitude and longitude to proximity criterion, you would need to set the latitude and longitude in micro degrees. Also, the radiusDistanceUnits and radiusInUnits should be set in the proximity object. Could you please give the below code snippet a try and let me know if that works?
proximity = {
'xsi_type': 'Proximity',
'geoPoint':{
'latitudeInMicroDegrees' : '40712800',
'longitudeInMicroDegrees' : '74006000'
},
'radiusDistanceUnits': 'KILOMETERS',
'radiusInUnits' : '50.0'
}
Thanks,
Sreelakshmi, AdWords API Team