E00003 : Name cannot begin with the '+' character

[wmloving]

I'm am using FileMaker Pro and the XML Post method to submit transactions including CIM. I am able to submit the following XML code successfully on a Mac using the Mac version of FileMaker Pro 11 and the Troi URL plugin to handle the URL Post operation. However, when I run it on my client's Windows machine I get the above error. There is no '+' value in the code I'm posting so I'm baffled as to why the error is happening. The exact same code works fine on the Mac and I am able to use similar code to access other Gateways besides Authorize.net on both platforms.

I've substituted fake contact info below, but otherwise this is what is being submitted. Works on Mac, not on Windows.

<?xml version="1.0" encoding="utf-8"?>
<createCustomerProfileRequest xmlns="AnetApi/xml/v1/schema/AnetApiSchema.xsd">
  <merchantAuthentication>
    <name>123456789</name>
    <transactionKey>****</transactionKey>
  </merchantAuthentication>
  <profile>
    <merchantCustomerId>9569</merchantCustomerId>
    <email>fred@bedrock.com</email>
    <paymentProfiles>
      <customerType>individual</customerType>
      <billTo>
        <firstName>Fred</firstName>
        <lastName>Flintstone</lastName>
        <address>123 Bedrock Ave</address>
        <city>Bedrock</city>
        <state>NY</state>
        <zip>11205</zip>
        <country></country>
        <phoneNumber></phoneNumber>
      </billTo>
      <payment>
        <creditCard>
          <cardNumber>5555555555554444</cardNumber>
          <expirationDate>2014-10</expirationDate>
          <cardCode>123</cardCode>
        </creditCard>
      </payment>
    </paymentProfiles>
  </profile>
  <validationMode>liveMode</validationMode>
</createCustomerProfileRequest>

[RaynorC1emen7]

The error said position 6, which is the space

http://stackoverflow.com/questions/2678551/when-to-encode-space-to-plus-or-20

sound like the url post operation is changing the space to a + sign.

[wmloving · Accepted solution]

Encoding did turn out to be the issue though it was more specifically related to the Troi URL Plugin (used with FileMaker) requiring the "-NotEncoded" switch to be set when submitting on the Windows platform. The suggestion put me on the right track.