title: Amadeus-Flight-Post Booking-Adding Frequent Flyer Number In a PNR
body: <p>I've created a flight PNR(and is end transacted) with Amadeus SOAP Api. Now I want to add a Frequent Flyer Number(fnn) to one of the passengers in this PNR. For this, I've called <code>PNR_AddFrequentFlyer</code> SOAP api. Please see the below procedures that I've taken so far.</p>
  
  <ol>
  <li>Called <code>PNR_AddFrequentFlyer</code> SOAP Api with proper data.</li>
  <li>Got Successful Response.</li>
  <li>End Transacted the call(<code>Security_SignOut</code>) with the session credentials got from <code>PNR_AddFrequentFlyer</code>.</li>
  <li>After that, I called fetch pnr(<code>PNR_Retrieve</code>) api and the response xml got no ffn of that passenger.</li>
  </ol>
  
  <p>My problem is with no 4. Although I get successful response from <code>PNR_AddFrequentFlyer</code>, why no ffn is showing in <code>PNR_Retrieve</code> api calling xml response?</p>
  
  <p>I've read the doc for <a href="https://developers.amadeus.com/functional-doc/24/doc-read/98377?serviceVersion=4.1" rel="nofollow noreferrer"><code>PNR_AddFrequentFlyer</code></a> and found out this piece of info showed in the screenshot. Here it says, a commit transaction is needed. <a href="https://i.stack.imgur.com/2rzv1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2rzv1.png" alt="enter image description here"></a></p>
  
  <p>So, what is this <strong>Commit Transaction</strong>? I thought the commit transaction is the <code>Security_SignOut</code> api call. But it seems not to be working. Any suggestion is highly appreciated.</p>