After adding some more logging, another example that results in a 400 on our side:
19:07:52 [WARN] c.g.a.a.a.lib.utils.report_download Request made: Service: reportdownload Method: POST clientCustomerId: 858-429-0765 URL: https://adwords.google.com//api/adwords/reportdownload/v201710 Request ID: null ResponseTime(ms): null OperationsCount: null IsFault: true FaultMessage: com.google.api.ads.adwords.lib.utils.ReportException: 502: Bad Gateway 2018-04-15 19:07:52 [INFO] c.g.a.a.a.lib.utils.report_download HTTP request: accept-encoding: [gzip] authorization: REDACTED user-agent: [smeco (AwApi-Java, Common-Java/3.12.0, Java/1.8.0_121, maven, ReportDownloader)] developertoken: REDACTED clientcustomerid: 858-429-0765 includezeroimpressions: false Content: __rdquery: SELECT Conversions,ConversionValue FROM SHOPPING_PERFORMANCE_REPORT WHERE CountryCriteriaId = 2250 DURING 20180316,20180415 __fmt: XML Caused by: HTTP Response Code: 400 at com.google.api.ads.adwords.lib.utils.v201710.DetailedReportDownloadResponseException$Builder.build(DetailedReportDownloadResponseException.java:35) -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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/13b5f9e7-1899-442f-aaea-fc7bcdfc490f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.