Thank you for all the help and recomendations. I've attempted to make all the changes recommended though unfortunately I am still getting the same error message back. I've included the text below that is the data that is sent over in the hopes that something will jump out at you all and I can get over this hump. I've also included the c# that I am using to generate the data in case that has something glaring that you can see. Again, thanks for all the help and info with this! <?xml version='1.0' encoding='UTF-8'?><entry xmlns="http://www.w3.org/2005/Atom"><link href="/ws/customers/pothomas@_________.com/campaigns" rel="edit" /><id>http://api.constantcontact.com/ws/customers/pothomas@_________.com/campaigns</id><title type="text">test campaign</title><updated>2012-01-17T21:59:40.6980369-05:00</updated><author><name>Constant Contact</name></author><content type="application/vnd.ctct+xml"><Campaign xmlns="http://ws.constantcontact.com/ns/1.0/" id="http://api.constantcontact.com/ws/customers/pothomas@_________.com/campaigns/0000000000000" ><Name>test campaign</Name><Status>Draft</Status><Date>2012-01-17T21:58:41.6945088-05:00</Date><Subject>test subject</Subject><FromName>__________</FromName><ViewAsWebpage>NO</ViewAsWebpage><ViewAsWebpageLinkText></ViewAsWebpageLinkText><ViewAsWebpageText></ViewAsWebpageText><PermissionReminder>YES</PermissionReminder><PermissionReminderText>You're receiving this email because of your relationship with ctct. Please <ConfirmOptin><a style="color:#0000ff;">confirm</a></ConfirmOptin> your continued interest in receiving email from us.</PermissionReminderText><GreetingSalutation>Dear</GreetingSalutation><GreetingString>Greetings!</GreetingString><OrganizationName>LifeSaver</OrganizationName><OrganizationAddress1>123 Main</OrganizationAddress1><OrganizationAddress2></OrganizationAddress2><OrganizationAddress3></OrganizationAddress3><OrganizationCity>Anytown</OrganizationCity><OrganizationState>GA</OrganizationState><OrganizationInternationalState></OrganizationInternationalState><OrganizationCountry>US</OrganizationCountry><OrganizationPostalCode></OrganizationPostalCode><IncludeForwardEmail>NO</IncludeForwardEmail><ForwardEmailLinkText></ForwardEmailLinkText><IncludeSubscribeLink>NO</IncludeSubscribeLink><SubscribeLinkText></SubscribeLinkText><GreetingName>FirstName</GreetingName><EmailContentFormat>HTML</EmailContentFormat><EmailContent><html><body>test</body></html></EmailContent><EmailTextContent><Text>This is the text version.</Text></EmailTextContent><StyleSheet></StyleSheet><ContactLists><ContactList id="http://api.constantcontact.com/ws/customers/pothomas@_________.com/lists/2"><link xmlns="http://www.w3.org/2005/Atom" href="/ws/customers/pothomas@_________.com/lists/2" rel="self" /></ContactList></ContactLists><FromEmail><Email id="http://api.constantcontact.com/ws/customers/pothomas@_________.com/settings/emailaddresses/0"><link xmlns="http://www.w3.org/2005/Atom" href="/ws/customers/pothomas@_________.com/settings/emailaddresses/0" rel="self" /></Email><EmailAddress><?xml version="1.0" encoding="UTF-8"?> <entry xmlns="http://www.w3.org/2005/Atom"> <link href="/ws/customers/pothomas%40_________.com/settings/emailaddresses/1" rel="edit"></link> <id>http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses/1</id> <title type="text">pothomas@_________.com</title> <updated>2003-07-28T18:30:37.443Z</updated> <author> <name>Constant Contact</name> </author> <content type="application/vnd.ctct+xml"> <Email xmlns="http://ws.constantcontact.com/ns/1.0/" id="http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses/1"> <EmailAddress>pothomas@_________.com</EmailAddress> <Status>Verified</Status> <VerifiedTime>2003-07-28T18:30:37.443Z</VerifiedTime> </Email> </content> <source> <id>http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses</id> <title type="text"></title> <link href="emailaddresses"></link> <link href="emailaddresses" rel="self"></link> <author> <name>pothomas@_________.com</name> </author> <updated>2012-01-18T02:59:11.272Z</updated> </source> </entry></EmailAddress></FromEmail><ReplyToEmail><Email id="http://api.constantcontact.com/ws/customers/pothomas@_________.com/settings/emailaddresses/0"><link xmlns="http://www.w3.org/2005/Atom" href="/ws/customers/pothomas@_________.com/settings/emailaddresses/0" rel="self" /></Email><EmailAddress><?xml version="1.0" encoding="UTF-8"?> <entry xmlns="http://www.w3.org/2005/Atom"> <link href="/ws/customers/pothomas%40_________.com/settings/emailaddresses/1" rel="edit"></link> <id>http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses/1</id> <title type="text">pothomas@_________.com</title> <updated>2003-07-28T18:30:37.443Z</updated> <author> <name>Constant Contact</name> </author> <content type="application/vnd.ctct+xml"> <Email xmlns="http://ws.constantcontact.com/ns/1.0/" id="http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses/1"> <EmailAddress>pothomas@_________.com</EmailAddress> <Status>Verified</Status> <VerifiedTime>2003-07-28T18:30:37.443Z</VerifiedTime> </Email> </content> <source> <id>http://api.constantcontact.com/ws/customers/pothomas%40_________.com/settings/emailaddresses</id> <title type="text"></title> <link href="emailaddresses"></link> <link href="emailaddresses" rel="self"></link> <author> <name>pothomas@_________.com</name> </author> <updated>2012-01-18T02:59:11.994Z</updated> </source> </entry></EmailAddress></ReplyToEmail></Campaign></content><source><id>http://api.constantcontact.com/ws/customers/pothomas@_________.com/campaigns</id><title type="text">Campaigns for customer: pothomas@_________.com</title><link href="campaigns" /><link href="campaigns" rel="self" /><author><name>pothomas@_________.com</name></author><updated>2012-01-17T21:59:40.7292370-05:00</updated></source></entry> ConstantContactBO.Entities.EmailCampaign campaign = new ConstantContactBO.Entities.EmailCampaign(); campaign.Name = "test campaign"; campaign.State = CampaignState.Draft; campaign.Date = System.DateTime.Now; campaign.Subject = "test subject"; campaign.FromName = "_________"; campaign.ViewAsWebpage = false; campaign.ViewAsWebpageLinkText = ""; campaign.ViewAsWebpageText = ""; campaign.PermissionReminder = true; campaign.PermissionReminderText = "You're receiving this email because of your relationship with ctct. Please <ConfirmOptin><a style=\"color:#0000ff;\">confirm</a></ConfirmOptin> your continued interest in receiving email from us."; campaign.GreetingSalutation = "Dear"; campaign.GreetingName = "FirstName"; campaign.GreetingString = "Greetings!"; campaign.OrganizationName = "_________"; campaign.OrganizationAddress1 = "123 Main"; campaign.OrganizationAddress2 = ""; campaign.OrganizationAddress3 = ""; campaign.OrganizationCity = "Anytown"; campaign.OrganizationState = "GA"; campaign.OrganizationInternationalState = ""; campaign.OrganizationCountry = "US"; campaign.IncludeForwardEmail = false; campaign.ForwardEmailLinkText = ""; campaign.IncludeSubscribeLink = false; campaign.SubscribeLinkText = ""; campaign.EmailContentFormat = "HTML"; campaign.Content = System.Net.WebUtility.HtmlEncode("<html><body>test</body></html>"); campaign.TextContent = System.Net.WebUtility.HtmlEncode("<Text>This is the text version.</Text>"); campaign.StyleSheet = ""; string t = ""; ContactList cList = Utility.GetContactListCollection(authdata, out t)[0]; campaign.ContactLists = new List<ContactList>(1); campaign.ContactLists.Add(cList); campaign.FromEmail = Utility.httpGet(authdata, "https://api.constantcontact.com/ws/customers/" + authdata.Username + "/settings/emailaddresses/1"); campaign.ReplyToEmail = Utility.httpGet(authdata, "https://api.constantcontact.com/ws/customers/" + authdata.Username + "/settings/emailaddresses/1"); campaign.CampaignType = CampaignType.CUSTOM; Utility.CreateNewEmailCampaign(authdata, campaign);
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