Wufoo - POSTing to Form API - form can't accept new entries

I am using the Wufoo form api to POST to a form on my account, But despite following the documentation I run into this error:

This form can't accept new entries. Please inform the owner of the form so they can contact Wufoo Support

So far the following requirements have been met:

Using correct subdomain and form identifier
Using version 3
Response = JSON
Using Basic Authentication used with API Key and password
Sending the parameters as an array "FieldID" => "Value"
Form set to public
Password protected my form

Yet I still get this error, is there anything else I / the documentation is missing?

Solution

I was very frustrated by this issue too.. it seems that that response is given anytime you give the API form ID's it's not expecting (like Field4, Field4-1, Field4-2) instead of simply combining them into one Field (at least for me)

I had a phone number field that wuFoo split into 3 parameters:

<li id="foli4" class="phone notranslate">
    <label class="desc" id="title4" for="Field4">
        Phone Number
    </label>
    <span>
        <input id="Field4" name="Field4" type="tel" class="field text" value="" size="3" maxlength="3" tabindex="4"/>
        <label for="Field4">###</label>
    </span>
    <span class="symbol">-</span>
    <span>
        <input id="Field4-1" name="Field4-1" type="tel" class="field text" value="" size="3" maxlength="3" tabindex="5" />
        <label for="Field4-1">###</label>
    </span>
    <span class="symbol">-</span>
    <span>
        <input id="Field4-2" name="Field4-2" type="tel" class="field text" value="" size="4" maxlength="4" tabindex="6" />
        <label for="Field4-2">####</label>
    </span>
</li>

In PHP, I decomposed this via http_build_query($_POST) into: Field4=555&Field4-1=555&Field4-2=5555 and sent it via the boilerplate code they provide over cURL https://wufoo.github.io/docs/?shell#submit-entry.

Sending this returned the response:

{"Success":0,"ErrorText":"This form can't accept new entries. Please inform the owner of the form so they can contact Wufoo Support.","FieldErrors":[]}

When I sent this However:

Field4=5555555555 in my post body, the form submission succeeds!

It appears that even though WuFoo splits parts of its form into several components, it's expecting the response to be concatenated together, otherwise it freaks out.

Hope this helps all of you out there struggling with the WuFoo API!