Hi Vilen, Based on your logs, you did not specify a concrete type of UserListOperation <https://developers.google.com/adwords/api/docs/reference/v201806/AdwordsUserListService.UserListOperation#operand> in your operand which might have caused the error. You may look up to this sample code <https://developers.google.com/adwords/api/docs/samples/java/remarketing#create-a-remarketing-user-list-audience> for your reference on how to add BasicUserList <https://developers.google.com/adwords/api/docs/reference/v201806/AdwordsUserListService.BasicUserList>. Also, you may refer to the sample SOAP request below. If the issue persist, could you provide the complete SOAP request and response logs together with your clientCustomerId so I could further investigate the issue. Please reply via *Reply privately to author*.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Header> <ns1:RequestHeader xmlns:ns1="https://adwords.google.com/api/adwords/rm/v201806" soapenv:mustUnderstand="0"> <ns2:clientCustomerId xmlns:ns2="https://adwords.google.com/api/adwords/cm/v201806">xxx-xxx-xx</ns2:clientCustomerId> <ns3:developerToken xmlns:ns3="https://adwords.google.com/api/adwords/cm/v201806">REDACTED</ns3:developerToken> <ns4:userAgent xmlns:ns4="https://adwords.google.com/api/adwords/cm/v201806">unknown</ns4:userAgent> <ns5:validateOnly xmlns:ns5="https://adwords.google.com/api/adwords/cm/v201806">false</ns5:validateOnly> <ns6:partialFailure xmlns:ns6="https://adwords.google.com/api/adwords/cm/v201806">false</ns6:partialFailure> </ns1:RequestHeader> </soapenv:Header> <soapenv:Body> <mutate xmlns="https://adwords.google.com/api/adwords/rm/v201806"> <operations> <ns7:operator xmlns:ns7="https://adwords.google.com/api/adwords/cm/v201806">ADD</ns7:operator> <operand xmlns:ns8="https://adwords.google.com/api/adwords/rm/v201806" xsi:type="ns8: BasicUserList"> <ns8:id>1</ns8:id> <ns8:name>June cruise customers #1528774489303</ns8:name> <ns8:description>A list of june cruise customers in the last year</ns8:description> <ns8:status>OPEN</ns8:status> <ns8:membershipLifeSpan>365</ns8:membershipLifeSpan> </operand> </operations> </mutate> </soapenv:Body> </soapenv:Envelope> Thanks and regards, Luis AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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. 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/a9884565-621f-4e3c-9bec-ce3645ee75be%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.