Does the Icinga2 Web Reporting module expose variables for use in customizing email subject line?

I’ve installed the Icinga2 Web Reporting module and works as advertised. However, I’m looking to automate sending out monthly reports and would like to indicate the email subject for which period the report is for. For instance, when sending the last month report, I’d like to have the subject line look like:

SLA Report for September '23.

Is this possible?

Server Details
  • Icinga Web 2 version: 2.11.4

  • Used modules and their versions (System - About)

    Loaded Modules
    idoreports 		0.10.1 	Configure
    monitoring 		2.11.4 	Configure
    pdfexport 		0.10.2 	Configure
    reporting 		0.10.0 	Configure
    Copyright © 2013-2023 Icinga GmbH
  • Icinga 2 version used (icinga2 --version)

    [2023-10-30 14:51:01 +1100] warning/Application: Failed adjust resource limit for number of processes (RLIMIT_NPROC) with error "Operation not permitted"
    [2023-10-30 14:51:01 +1100] warning/Application: Failed adjust resource limit for number of processes (RLIMIT_NPROC) with error "Operation not permitted"
    icinga2 - The Icinga 2 network monitoring daemon (version: r2.14.0-1)
    Copyright (c) 2012-2023 Icinga GmbH (
    License GPLv2+: GNU GPL version 2 or later <>
    This is free software: you are free to change and redistribute it.
    There is NO WARRANTY, to the extent permitted by law.
    System information:
      Platform: Ubuntu
      Platform version: 22.04.3 LTS (Jammy Jellyfish)
      Kernel: Linux
      Kernel version: 6.2.0-1014-aws
      Architecture: x86_64
    Build information:
      Compiler: GNU 11.3.0
      Build host: runner-hh8q3bz2-project-575-concurrent-0
      OpenSSL version: OpenSSL 3.0.2 15 Mar 2022
    Application information:
    General paths:
      Config directory: /etc/icinga2
      Data directory: /var/lib/icinga2
      Log directory: /var/log/icinga2
      Cache directory: /var/cache/icinga2
      Spool directory: /var/spool/icinga2
      Run directory: /run/icinga2
    Old paths (deprecated):
      Installation root: /usr
      Sysconf directory: /etc
      Run directory (base): /run
      Local state directory: /var
    Internal paths:
      Package data directory: /usr/share/icinga2
      State path: /var/lib/icinga2/icinga2.state
      Modified attributes path: /var/lib/icinga2/modified-attributes.conf
      Objects path: /var/cache/icinga2/icinga2.debug
      Vars path: /var/cache/icinga2/icinga2.vars
      PID path: /run/icinga2/
  • PHP version used (php --version)

    PHP 8.1.2-1ubuntu2.14 (cli) (built: Aug 18 2023 11:41:11) (NTS)
    Copyright (c) The PHP Group
    Zend Engine v4.1.2, Copyright (c) Zend Technologies
        with Zend OPcache v8.1.2-1ubuntu2.14, Copyright (c), by Zend Technologies
  • Server operating system and version

    $ cat /etc/os-release 
    PRETTY_NAME="Ubuntu 22.04.3 LTS"
    VERSION="22.04.3 LTS (Jammy Jellyfish)"