No invoice number for certain users

Hello @muleque

Yes, should be possible, please add the code snippet below to your theme functions.php file:

add_filter('wpo_wcpdf_document_is_allowed', function( $allowed, $document )
{
	if ( !empty($order = $document->order) && $document->get_type() == 'invoice' ) {
		$user = $order->get_user();
		// based on user login
		if( $user->user_login == 'some_username' ) { // replace with another user login name
			$allowed == false;
		}
		// based on user role
		if ( in_array( 'administrator', (array) $user->roles ) ) { // replace with another role
			$allowed == false;
		}
	}
	return $allowed;
}, 10, 2 );

If you never worked with actions/filters, please read this documentation page: How to use filters

unfortunately this does not work for me. Any idea what could go wrong? Neither ‘Administrator’ nor my login name works. The code, however, makes total sense.
Any advice?

Any advice on how I can debug the fields?

Hi @muleque,

There was a small typo in the code snippet of my colleague. Please try the following:

add_filter('wpo_wcpdf_document_is_allowed', function( $allowed, $document ) {
	if ( !empty( $order = $document->order ) && $document->get_type() == 'invoice' ) {
		$user = $order->get_user();
		// based on user login
		if ( $user->user_login == 'some_username' ) { // replace with another user login name
			$allowed = false;
		}
		// based on user role
		if ( in_array( 'administrator', (array) $user->roles ) ) { // replace with another role
			$allowed = false;
		}
	}
	return $allowed;
}, 10, 2 );

Awesome. Your snippet did the job perfectly!
Many thanks.