 the user.</p>
			</div>
			
		    

			<div class="method-subsection method-declaration"><code>- (void)setIdentifier:(NSString *)<em>identifier</em></code></div>

		    
			

			

			

			
			<div class="method-subsection discussion-section">
				<h4 class="method-subtitle">Discussion</h4>
				<p>Sets the unique identifier for the user.</p>

<p>Setting a user ID ensures subsequent Merchant activity (such as installs or purchases) is attributed to a user.
This can either be your user ID, email or a stable h