title: Set & get custom CUSTOMER ATTRIBUTE in Magento Enterprise
body: <p>We create a custom customer attribute in Magento Enterprise (1.12.0.2) to store the users account id, thus allowing us to keep our RMS in sync with Magento.</p>
  
  <p>I need to set the RMS id manually (via PHP), and then later get the RMS id. The custom attribute is a text field and it's label is rms_id. I need to do the following:</p>
  
  <ol>
  <li>Check if rms_id is set using customer id</li>
  <li>If it's not set, update the customers rms_id with a provided value</li>
  </ol>
  
  <p>Seems straightforward, however I'm new to Magento development and cannot find a solution to this problem. All searches return results for custom <em>product</em> attributes, which is not the asme as a custom <em>customer</em> attribute. Any help would be much appreciated.</p>