Shamim's Plugins

Your attachment will not be sent with email in your approach.
From my code add_action ('fep_action_message_after_send', 'fep_open_emr_upload_attachments', 10, 3 ); and bellow everything move to above function action_putmessage( $args ) {. That means attachment hook have to be added first.

Let me know.

This plugin do this when plugin install. So if role not present that time it can not detect.
Any role added later have to manually ticked.

Thanks

I understand you. But this plugin support multiple recipients. Suppose you have started a conversation where recipients are 5 persons. So you are sender but receivers are 5 persons. So which users avatar will show?

I can not access your Back end or message system. Please log in with this user and access message system or back end. You will see error.

Also if possible change language to english for testing.

Please check following
1. Allow attachment in Front End PM PRO Settings
2. File mime type is present and it is in allowed type
3. File size is less then from Front End PM PRO Settings

You can also remove some check from this function and try to find out which check failed. eg remove

if( !$mime || !in_array( $mime, get_allowed_mime_types() ) )
	return false;

then try. Also remove other check and try.

I am not sure if i will add in future because it is not most of the users use and it need a pretty big library. Also it use unnecessary resources for our purposes.

But time will tell if anytime need this to include.

Please use following (Untested).
let me know

function action_putmessage( $args ) {
	global $out, $admin_user_login;
	
	if( ! function_exists( 'fep_send_message' ) )
	return false;
	
	$sender = fep_get_userdata( $admin_user_login, 'ID', 'login' );
	
	if (!$sender) {
		$out['errmsg'] = "No such sender '$admin_user_login'";
		return false;
	}
	$recipient = fep_get_userdata( $args['user'], 'ID', 'login' );
	if (!$recipient) {
		$out['errmsg'] = "No such recipient '{$args['user']}'";
		return false;
	}
	$message = array(
		'message_title' => $args['title'],
		'message_content' => $args['message'],
		'message_to_id' => $recipient,
		'open_emr_args' => $args, //pass to get in attachment function
	);
	$override = array(
		'post_author' => $sender,
	);
	$message_id = fep_send_message( $message, $override );
}

add_action ('fep_action_message_after_send', 'fep_open_emr_upload_attachments', 10, 3 );

function fep_open_emr_upload_attachments( $message_id, $message, $inserted_message ){
	if ( ! fep_get_option( 'allow_attachment', 1 ) || ! $message_id || empty( $message['open_emr_args']) )
	return false;
	
	$args = $message['open_emr_args'];
	
	$name = isset( $args['filename'] ) ? $args['filename'] : '';
	
	if( ! $name )
	return false;
	
	$size_limit = (int) wp_convert_hr_to_bytes(fep_get_option('attachment_size','4MB'));
	$fields = (int) fep_get_option('attachment_no', 4);
	
	if( class_exists( 'Fep_Attachment' ) ){
		add_filter('upload_dir', array(Fep_Attachment::init(), 'upload_dir'));
	}
	
	$mime = isset( $args['mimetype'] ) ? $args['mimetype'] : '';
	$content = isset( $args['contents'] ) ? base64_decode($args['contents']) : '';
	
	if( !$mime || !in_array( $mime, get_allowed_mime_types() ) )
	return false;
	
	$size = strlen( $content );
	if( $size > $size_limit )
	return false;
	
	$att = wp_upload_bits( $name, null, $content );
	
	if( ! isset( $att['file'] ) || ! isset( $att['url'] ) || ! isset( $att['type'] ) )
	return false;
	
	$attachment = array(
		'guid'           => $att['url'], 
		'post_mime_type' => $att['type'],
		'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $att['url'] ) ),
		'post_content'   => '',
		'post_author'	=> $inserted_message->post_author,
		'post_status'    => 'inherit'
	);
	
	// Insert the attachment.
	wp_insert_attachment( $attachment, $att['file'], $message_id );
	
	if( class_exists( 'Fep_Attachment' ) ){
		remove_filter('upload_dir', array(Fep_Attachment::init(), 'upload_dir'));
	}
}