Hi Ken, Based on the code snippet you provided, it appears that you did not specify a value for the AppId <https://developers.google.com/adwords/api/docs/reference/v201710/AdGroupCriterionService.MobileApplication#appid> field. Could you retry and include the said field in your request and see if the issue persists? If you are still unable to add a mobile application criterion, could you provide the complete SOAP request and response so I can better identify what caused the issue?
You may refer to this guide <https://github.com/googleads/googleads-php-lib#user-content-configuring-logging> on how to enable SOAP logging at your end and reply to me privately via the *Reply privately to author* option when sending the logs. 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 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 Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. 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/7251e25c-0573-41c1-9750-634cf34c7d7d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.