To save for iOS App Store you need to add an apple id account that is enrolled in the ios developer program for the development team
<p>I have been trying to export an .IPA for external client. 
I am using their Provisioning profile and Distribution certificate (via .p12 and their password).</p>

<p>The problem I am facing is that when I try to export it for App Store Deployment or Adhoc Deployment I get the message that : 
<strong>“to save for iOS App Store you need to add an apple id account that is enrolled in the ios developer program for the development team (XXXXXXXXXX)”</strong></p>

<p><a href="https://i.stack.imgur.com/eQGph.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eQGph.png" alt="Export .IPA"></a>
Any idea how to export the IPA please. 
Thanks. </p>