Empty response from API getCampaignCriterionBidLandscape

['MOISES SAAVEDRA CACERES' via AdWords API and Google Ads API Forum]

Hi,

I am trying to receive bid landscape from a CampaignID and in each request 
I receive the following as output:

*This is my output:*
{
    'totalNumEntries': 0,
    'Page.Type': 'CriterionBidLandscapePage',
    'entries': []
}

*This is my code: *(I give it a CampaginID)
# Initialize appropriate service.
    data_service = client.GetService('DataService', version='v201809')

    #Se crea el intervalo de dias por analizar
    endDate = datetime.datetime.today()
    startDate = endDate - datetime.timedelta(days=28)

     Se entrega el selector que filtra segun lo solcitado
    selector = {
        'fields': ['CampaignId', 'CriterionId', 'StartDate', 'EndDate',
                    'BidModifier', 'LocalClicks', 'LocalCost', 
'LocalImpressions',
                    'TotalLocalClicks', 'TotalLocalCost', 
'TotalLocalImpressions',
                    'RequiredBudget'],
        'paging': {
            'startIndex': 0,
            'numberResults': PAGE_SIZE
        },
        'predicates': 
        [
            {'field': 'CampaignId', 'operator': 'IN', 'values': 
[campaign_id]},
            {'field': 'StartDate', 'operator': 'IN', 'values': 
[startDate.strftime('%Y%m%d')]},
            {'field': 'EndDate', 'operator': 'IN', 'values': 
[endDate.strftime('%Y%m%d')]},
        ]
    }


    # Valor inicial de busqueda (si son muchos datos se analizan mas 
paginas)
    offset = 0
    more_pages = True

    # Comienza la busqueda y retorna segun lo solicitado
    while more_pages is True:
        num_landscape_points = 0
        page = data_service.getCampaignCriterionBidLandscape(selector)
    ....


I need help pls!

-- 
-- 
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
Also find us on our blog:
https://googleadsdeveloper.blogspot.com/
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~

You received this message because you are subscribed to the Google
Groups "AdWords API and Google Ads API Forum" group.
To post to this group, send email to adwords-api@googlegroups.com
To unsubscribe from this group, send email to
adwords-api+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/adwords-api?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"AdWords API and Google Ads API Forum" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to adwords-api+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/adwords-api/de6c1552-984d-4f21-8107-c686320f5107n%40googlegroups.com.