Hi Jun Park, As far as I know, there should be no issues whether you defined only three or all the selectable fields of a service in your Selector. Furthermore, you will require to use paging for the get() method <https://developers.google.com/adwords/api/docs/guides/objects-methods#the_get_method> when pulling a significant volume of data to reduce the risk or avoid any errors regarding performance.
Best regards, Peter AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] 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 Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/34728f99-3d18-443b-bbe6-84e2a6ce00ff%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
