Capture exactly what you need: getting creative with custom fields

Every organization runs its bookings a little differently. Out of the box, MIDAS captures the essentials with each booking – the date and time, the venue, who it’s for, the type of booking, the number of attendees, any resources, and a notes field. For your clients, it records names, organizations, contact details, and addresses.

But what if you need to capture something specific to your operation? Perhaps a a signed waiver, a purchase order number, or a link to a room layout. That’s exactly what custom fields are for. They let you add your own booking fields and client fields on top of the standard ones, so MIDAS records precisely the information you need.

In this post we’ll look at the types of custom field available, and share some real-world ideas for putting them to work.

The building blocks

You can add custom fields to either bookings or client records, and each field can be one of the following types:

  • Text – a single-line text field, ideal for short pieces of information such as a reference or order number.
  • Text Area – a multi-line field for longer notes. You can set how many rows it shows by default, and make it resizable so users can drag it larger when they need to.
  • Number – accepts numerical input only.
  • Checkbox – a simple tick box, perfect for yes/no questions.
  • List (Single Select) – a drop-down from which one predefined item can be chosen.
  • List (Multi Select) – a drop-down from which several items can be chosen at once.
  • Range – a slider control for picking a numeric value between a minimum and maximum you define.
  • URL – a clickable web link to an external resource.
  • File – lets users upload and attach files or documents directly to a booking or client record. (Available in self-hosted editions of MIDAS – see why file fields aren’t available on cloud-hosted systems.)

Each field can be shown or hidden, made optional or required, restricted to certain users, and given a short description that appears above it to guide whoever is filling it in.

A List (Multi Select) custom field
A List (Multi Select) custom field

Ideas for custom booking fields

A waiver or terms checkbox – with a link

A custom checkbox field with an HTML enabled description.
A custom checkbox field with an HTML enabled description.

A field’s description accepts simple HTML, which opens up some neat possibilities. Add a Checkbox field named something like “I have read and accept the Terms & Conditions of Hire”, and in its description include a link to your waiver or terms document. Mark the field as Required, and a booking can’t be saved until the box is ticked – giving you a simple record that the waiver was acknowledged for every booking.

A link to supporting documents

A URL field is a tidy way to associate an external document with a booking without storing the file itself – useful on any edition, including cloud-hosted. You might link to a shared document, a SharePoint page, a risk assessment, or an event running order held elsewhere. Whoever opens the booking can jump straight to the relevant document with a click.

A purchase order or cost code

A simple Text field captures a PO number or internal cost code against each booking, ready to appear on the resulting invoice. You can even apply input validation to a text field using a regular expression, so MIDAS only accepts entries that match the format your finance team expects.

An expected-numbers slider

While MIDAS already records attendees, a Range slider can be handy for capturing a softer estimate – for instance a “Confidence in numbers” or “Setup complexity” scale – giving your team a quick visual cue when they open the booking.

Ideas for custom client fields

A salutation or title

A custom client "Salutation" field
A custom client “Salutation” field

A List (Single Select) client field with items like Mr, Mrs, Ms, Dr, and Rev means your emails and letters can address clients correctly, drawing on the field automatically through your templates.

Insurance certificates and contracts

Upload and attach an insurance document to a client record
Upload and attach an insurance documents to client records

On self-hosted systems, a File client field lets you attach an insurance certificate, signed contract, or accreditation document straight to a client’s record – so it’s always to hand when you need it, rather than buried in someone’s inbox.

Membership or account numbers

A Text or Number client field is the natural home for a membership ID, account reference, or loyalty number, keeping it alongside the rest of the client’s details.

Putting your fields to work in templates

Custom fields aren’t just for the booking screen. Each one becomes available as a template variable, so you can include its value in booking confirmation emails, invoices, and print outs. Rename or remove a custom field, and MIDAS automatically updates the corresponding variable references in your templates for you.

Custom field input validation with REGEX support
Custom field input validation with REGEX support

Getting started

Custom fields are managed via MIDAS Admin Options → Fields, where you can switch between your booking fields and client fields and add as many of your own as you need. For the full details, see our Manage Fields help documentation.

However you run your bookings, custom fields let you shape MIDAS around your process rather than the other way around. If you come up with a clever use of your own, we’d love to hear about it!


Security Enhancements in MIDAS v4.42

Security Enhancements

MIDAS v4.42 brings several important security enhancements. Here’s what’s changed and why it matters.

Argon2id now the preferred method of password hashing

For many years MIDAS has utilized “bcrypt” to store password hashes. While “bcrypt” is still accepted industry practice, newer encryption methods like “Argon2id” offer improved protection.

“bcrypt” is computationally expensive. This means it takes a significant amount of processing time to compute each password hash. bcrypt also includes a configurable “work factor” controlling how “computationally expensive” each calculation is.

Back in 2017, a “work factor” of 10 was widely considered by security experts to be sufficient at the time, and this is the factor we used in MIDAS.

By 2020, computing power had evolved and so “best practice” was to upgrade to a “work factor” of 12, which we transparently rolled out to MIDAS for our v4.25 update that year.

Now in 2026, we’re firmly in the quantum computing and AI age. While bcrypt is still considered secure, it is only “computationally expensive” from a processing (CPU) perspective.

Newer methods, like “Argon2id”, are both processor-intensive and memory-intensive, and so offer an even greater line of defense against brute-forcing password hashes.

We’ve implemented Argon2id for MIDAS v4.42. End users won’t see any difference, but password hashes stored in each MIDAS system’s database are now more secure than ever, and will be automatically updated the first time a user signs in to v4.42.

Self-Hosted customers: You’ll need to install the Perl module “Crypt::Argon2” if you wish to take advantage of this security enhancement. If this module isn’t available on your server, MIDAS will fall back to using bcrypt.

Option to sign out a user everywhere when maximum number of failed sign-in attempts reached

One of the existing security features in MIDAS is the ability for the software to automatically ‘lock’ accounts after a configurable number of failed sign-in attempts. Account access can then be quickly restored by an administrative user, or via a link that MIDAS will email to you if your account becomes locked in this way.

An account becoming ‘locked’ due to a high number of failed sign-in attempts prevents further sign-in attempts being made on that account. Until now, any existing active sessions that the user may have were allowed to continue unaffected.

For MIDAS v4.42, we’ve introduced a new security setting (found under MIDAS Admin Options → Security) that, if enabled and a user account becomes automatically ‘locked’ due to a high number of failed sign-in attempts, all active sessions for that account will be automatically terminated as well.

Suspending a user account instantly expires all active sessions for the user

If an administrator manually suspends a user account, MIDAS will now also expire all active sessions for that user. Previously, if an account was manually suspended, it wouldn’t affect any currently active sessions — now it does.

Security Fixes

We’ve also addressed a handful of security and account-related bugs for v4.42 which were discovered by our team…

Fixed: Possible to bypass forced password expiry

One of the “legacy” settings in MIDAS is the ability for administrators to routinely force users to change their password. Enabling this option isn’t something that we recommend. Indeed, this is considered bad practice, as forcing users to regularly change their passwords actually harms rather than improves security.

Despite that, some organizations still insist on routine password change policies, and therefore, we’ve had to retain this option in MIDAS.

MIDAS v4.42 fixes a small issue related to this, whereby since v4.39, if a user is forced to change their password due to it having expired, the user could easily bypass this requirement by simply hitting reload/refresh in their browser when prompted to set a new password. We’ve resolved this for v4.42.

Fixed: Weak passwords were allowed when passwords were reset

MIDAS includes a visual strength indicator when entering a new password. Very Weak, Weak, and Common passwords are blocked and aren’t allowed. However, a small bug existed that could allow a weak password to be chosen during a password reset. This has been resolved for v4.42.

Fixed: Not possible to add new user accounts in suspended state

Administrators have extensive control over the permissions that can be assigned to each individual user account. Individual user accounts can also be quickly ‘Suspended’ by an administrator. Until now, however, a small bug prevented new user accounts from being added in an initial ‘suspended’ state. This has now been resolved for v4.42.

3rd Party Deprecations and Updates

MIDAS includes a small number of 3rd party components, and it’s important to us that we use the latest versions of these wherever possible.

To that end, for MIDAS v4.42 we’ve updated jQuery to v4.00 and jQuery-Autocomplete to v1.5.0.

We’ve also deprecated qTip2, as this is no longer maintained by the developer. qTip2 was used in MIDAS for dynamic tooltips, like those you see when you ‘hover’ over the name of a venue in the booking grid.

Instead, we’ve built our own dynamic tooltip system from the ground up for v4.42.


Microsoft SMTP AUTH Deprecation in 2026: What You Need to Know

Microsoft SMTP AUTH Basic Authentication Deprecation

If your MIDAS booking system is currently configured to send emails via Microsoft’s SMTP servers, it’s time to take action.

Microsoft has announced that it will be retiring support for SMTP AUTH (also known as “Basic Authentication” for SMTP) in 2026. Once this change takes effect, any application which is configured to use Microsoft SMTP endpoints for outgoing mail will no longer be able to send emails.

For MIDAS, if you’re using Microsoft’s SMTP servers, this means that booking confirmations, reminder emails, and other automated notifications sent from MIDAS would silently fail – potentially disrupting your organization’s scheduling and communications.

Here’s what you need to know, and what steps to take before the deadline.

What Is SMTP AUTH and Basic Authentication?

SMTP AUTH is a method that allows applications to authenticate with a mail server using a username and password in order to send outgoing email. It has been widely used for decades.

Why is Microsoft removing Basic Authentication and SMTP AUTH?

It’s worth noting that Microsoft’s decision to retire SMTP AUTH is driven by their own platform strategy around modern authentication – it doesn’t mean that sending email via SMTP is inherently insecure. Under the hood, SMTP works the same way it always has, and the username/password authentication used by SMTP hasn’t fundamentally changed. What Microsoft is retiring is the ability to authenticate to their mail servers this way, as they push users towards OAuth-based access within their ecosystem. MIDAS does not currently support OAuth, but this is not a concern — there are plenty of reliable, independent SMTP providers that continue to support standard SMTP authentication without any issues.

Are You Affected?

You may be affected if your MIDAS booking system’s outgoing email settings are currently configured to use any of the following SMTP servers:

  • smtp-mail.outlook.com — used by personal Outlook.com/Hotmail accounts
  • smtp.live.com — an older endpoint also associated with Outlook.com/Hotmail/Live accounts
  • smtp-legacy.office365.com — a temporary fallback endpoint for Microsoft customers that stilled relied on SMTP AUTH after the initial Basic Auth deprecation push.
  • smtp.office365.com — An Exchange Online endpoint used by Microsoft 365 services.
  • outlook.office365.com — another Exchange Online endpoint sometimes used in place of smtp.office365.com

You can check your current email sending settings via MIDAS Admin Options > Email.

The good news is that the fix is straightforward, and we’ve made it as easy as possible for MIDAS customers.

For Cloud-Hosted MIDAS Customers

If you’re on our cloud-hosted platform, we have the simplest possible solution for you: switch to MIDAS’s built-in Zero-Configuration Email Delivery.

This option requires no SMTP credentials, no third-party accounts, and no technical configuration on your part. MIDAS handles email delivery on your behalf, so you don’t need to worry about SMTP servers at all. You can find full details on how to enable this feature in our dedicated guide:

👉 Zero-Configuration Email Delivery for MIDAS

We strongly recommend all cloud-hosted customers make this switch at their earliest convenience – and certainly before Microsoft’s 2026 deadline.

For Self-Hosted MIDAS Customers

If you run MIDAS on your own server or hosting environment, you’ll need to update your outgoing mail settings to use an alternative SMTP provider. Fortunately, there are several excellent options available, many of which offer generous free tiers that would suit most MIDAS installations.

We recommend the following providers:

SMTP2GO

SMTP2GO is a reliable, cloud-based email delivery service with a free tier that allows up to 1,000 emails per month. It’s straightforward to set up and works seamlessly with MIDAS’s outgoing mail settings. Simply create a free account, verify your sending domain, and update your MIDAS SMTP settings with the credentials provided.

Mailgun

Mailgun is another popular transactional email service offering a free tier for low-volume sending. It provides robust deliverability, detailed sending logs, and is well-suited for automated system emails like those generated by MIDAS. After signing up and verifying your domain, update your MIDAS SMTP configuration with your Mailgun credentials.

To update your SMTP settings in MIDAS, navigate to MIDAS Admin Options > Email and enter the new SMTP server details provided by your chosen transactional email delivery service.

Don’t Wait Until It’s Too Late

According to Microsoft, their revised SMTP AUTH Basic Authentication Deprecation Timeline is as follows:

  • Now to December 2026: SMTP AUTH Basic Authentication behavior remains unchanged.
  • End of December 2026: SMTP AUTH Basic Authentication will be disabled by default for existing tenants. Administrators will still be able to enable it if needed.
  • New tenants created after December 2026: SMTP AUTH Basic Authentication will be unavailable by default. OAuth will be the supported authentication method.
  • Second half of 2027: Microsoft will announce the final removal date for SMTP AUTH Basic Authentication.

While Microsoft’s deadline is the end of December 2026, we recommend customers make this change sooner rather than later.

Email is a critical part of how MIDAS keeps your staff and visitors informed – from booking confirmations to reminders and notifications. A disruption to outgoing mail can go unnoticed until someone realizes they never received a confirmation, which can cause real-world scheduling problems.

Taking a few minutes now to update your settings will ensure uninterrupted email delivery well into the future. If you have any questions or need assistance, please don’t hesitate to contact our support team – we’re happy to help.


MIDAS at 20: Celebrating Two Decades of Room Booking Innovation

MIDAS turns 20

March 2026 marks 20 years since the very first public release of MIDAS. We first unveiled Version 1.00 of our room booking and resource scheduling software to the world on 11th March 2006.

Where it all began

Work actually began on MIDAS a few months earlier. In December 2005, Mark Harrington, the creator of MIDAS, was working in a brand new Performing Arts College – the first of its kind in Greater Manchester, UK.

This new school for students aged 11-16 boasted impressive state-of-the-art facilities. These included sports facilities, dance studio, 300-seat community theatre, outdoor stage, recording studios and rehearsal space.

All these spaces were available for internal use during the school day and for hire by external clients and community groups in the evenings, weekends, and school holidays.

Soon after the new school opened, the school appointed a Community Facilities Manager, Miriam. Her role was to oversee bookings and the smooth operation of the exciting new facilities. Demand from the local community was immediately high.

It soon became obvious that the software the school had been using for handling their room bookings was not up to scratch. It was simply not meeting the increasing demands on the busy new facilities.

The (now defunct) software named “VenueBooker”, was slow, cumbersome, buggy, and not very user-friendly.

After much discussion, frustration, and plenty of “wouldn’t it be great if we had a system that could…?” conversations, they soon realized that no existing alternatives did everything they wanted from an ideal room scheduling system.

The Problem That Sparked an Idea

Mark had a strong programming background. He was confident he could build something that covered everything a Community Facilities Manager would need — facilities, clients, and bookings.

So Mark sat down with Miriam and the two of them brainstormed how she wanted the software to ideally function.

Dozens of sheets of paper later, covered with all kinds of scribbled notes, arrows, and flow charts, Mark had something to go away and work on!

A few days later, Mark had a working prototype: MIDAS v0.01.

Mark named the software “MIDAS”, although to this day he has never confirmed whether that’s an acronym that stands for “Mark’s Infrastructure Daily Allocation System“, or “Miriam’s Infrastructure Daily Allocation System“(!)

Over the Christmas holidays of 2005, Mark worked diligently to develop and improve MIDAS, ready to deploy it at the school in the new year.

He even spent New Year’s Eve sitting in front of his computer at the stroke of midnight, coding away!

Within the first few weeks of 2006, MIDAS went “live” at the school for the first time. It transformed the way staff and external clients booked rooms.

Now for the first time, staff could check room availability themselves using just their web browser. The booking process was simpler, more efficient, and streamlined. Bookings increased substantially, revenue rose accordingly, and double-bookings were finally a thing of the past.

An early version of MIDAS in 2005
An early version of MIDAS in 2005

Going Public

Mark quickly realised MIDAS could help other schools and organisations facing the same challenges. Just a few months after the first internal prototype, he publicly released MIDAS v1.00 on 11th March 2006.

What began as a solution for one school has since grown into a trusted booking system that organisations across the world rely on.

Fast forward to 2026

For twenty years, MIDAS has evolved alongside changing technologies, shifting user expectations, and an increasingly competitive software landscape.

In that time, we’ve helped thousands of users in dozens of countries manage millions of bookings.

Our resource scheduling software remains in active development and we remain true to our original ethos of helping organizations of all shapes and sizes better manage their facilities and resource bookings.

Through browser revolutions, mobile adoption, cloud computing, and changing security standards, MIDAS has continuously adapted without losing its core mission.

New feature-rich updates are released at least three times a year, and many loyal customers stay with us for years.

Celebrating our 20th Anniversary

To coincide with our 20th anniversary, today we’re releasing the latest update to our MIDAS software, v4.42. Read about the new features in MIDAS v4.42.

Also to mark the 20th anniversary of our MIDAS room booking software, for a limited time – until 31st March 2026 – new customers get 20% off with Promo Code MIDAS20.

The Future

We’re tremendously proud to have been here for the past 20 years.

In that time, hundreds of competitors have appeared, many of whom were short-lived and have since vanished. MIDAS has stood the test of time.

To all our customers, whether you’ve been with us for the past 20 years, or just the past month – we appreciate you choosing MIDAS and sincerely thank you for your support! – You’ve committed to us, and we in turn continue to be fully committed to you.

New to MIDAS?

If you’ve never come across MIDAS before today (where have you been for the last twenty years?!) we appreciate that there’s a vast array of options out there today when it comes to choosing a room booking system.

Maybe you’re currently considering a change and are evaluating a number of different scheduling software solutions.

Whether you’re looking for a cloud booking or self-hosted booking system, a subscription or a perpetual license – we’ve got the facility management software for you!

When evaluating potential booking solutions, make sure you take into account 3 key factors:

  • How long a product has been established?
  • How frequently are updates released?
  • How responsive and reliable is customer support?

With MIDAS, you get a solid product from a trusted booking software provider with a proven track record. You get a stable system that’s in active development with unrivalled support to back it up!

Did you know that we even offer a no-obligation free 30-day trial today? Get yours today and experience the reliability that has defined MIDAS for two decades.

Twenty years ago, MIDAS began as a solution to a single school’s challenge. Today, it stands as a proven, stable, and continually evolving room booking solution trusted by organizations worldwide.

If you’re searching for a system built not just for today, but for the long term, now is the perfect time to experience MIDAS for yourself.

Don’t forget – use code MIDAS20 at checkout for 20% off your first purchase or subscription. Offer ends 31st March 2026.*

* Promotional Code valid until 31st March 2026 and is valid for initial MIDAS purchases or subscriptions only. We reserve the right to withdraw this offer at any time.