The remote server returned an error: (400) Bad Request.

Regular Participant

The remote server returned an error: (400) Bad Request.

I am using your ASP Sample (C#) for the form titled: Add new Contact - Simplified Form

I updated web.config with my API key and login/password and can list contacts OK.

When I try to add a contact, I get the error: The remote server returned an error: (400) Bad Request.

Interestingly, I get the same error in the other C# sample project for Campaigns.

Either your samples are out of date, or something has changed on your server.

Regards, Garry @ TriSys


TriSys Business Software

Cambridge, United Kingdom

Regular Participant


This is the XML which is being submitted:

<entry xmlns=\"\"><title type=\"text\"></title><updated>2008-07-23T14:21:06.407Z</updated><author></author><id>data:,none</id><summary type=\"text\">Contact</summary><content type=\"application/vnd.ctct+xml\"><Contact xmlns=\"\"><EmailAddress></EmailAddress><FirstName>Susan</...

d6><CustomField7></CustomField7><CustomField8></CustomField8><CustomField9></CustomField9><CustomField10></CustomField10><CustomField11></CustomField11><CustomField12></CustomField12><CustomField13></CustomField13><CustomField14></CustomField14><CustomField15></CustomField15><ContactLists><ContactList id=\"\"/></ContactLists></Contact></content></e...>

It is being submitted to

Is this the ago-old problem that US software has with UK data?

TriSys Business Software

Cambridge, United Kingdom


I took a look at the XML that you are using, and was able to use it to successfully create a contact in my account. The only modification I needed to make was to the <OptInSource> node. You are currently using <OptInSource>ActionByContact</OptInSource>. However, the only 2 possible values for this are:


ACTION_BY_CONTACT - this is the action used for website sign up forms, when the contact signs themselves up for your list


ACTION_BY_CUSTOMER - this is used for internal applications when someone other than the contact is adding themselves to your mailing list.


Replacing "ActionByContact" with either of the above options should resolve the issue you are having creating a contact. I hope this helps.


David J

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