What Are the Most Important Restaurant POS Integrations?

Nearly three in ten UK restaurant owners still track inventory primarily on a spreadsheet. Another 7.5% use paper logs. Only 16.5% pull it from their POS.

That gap is a useful starting point. When operators shortlist a platform, they need to know which connections must work from day one, which can wait and what to ask before signing.

What the question usually means, when someone asks it while shortlisting a platform, is which connections do I need working from day one, which can wait, and which will I regret not asking about during the sales process?

Unfortunately, integrations are not free, even when the software is. Every integration has an operating cost, even when there is no separate software fee. It may add a contract or login, and each sync introduces another point of failure. 

The operators getting the most out of their systems are rarely the ones with the longest integration list. They are the ones who connected the few things costing them real hours and left the rest alone. Before adding a connection, check whether the platform already handles the workflow natively.

The integration question is really a data question

Toast's Voice of the UK Restaurant Industry 2025 research found that the top technology challenges operators reported were accessing sales and financial data, managing multiple service channels, and replacing or maintaining hardware. Two of those three are integration problems wearing a different hat. If your sales data is hard to reach, it is usually because it lives in four places. If multiple channels are hard to manage, it is usually because each one arrives through its own device.

The same research found 69% of UK restaurants expected to increase technology spend over the following twelve months. Spending more is not the hard part. Spending it on connections that reduce work rather than adding it is where operators separate.

How to rank an integration before you commit

Three questions do most of the work here, and they apply whichever platform you end up choosing.

How frequently does the connection move data? A payroll sync might run weekly or fortnightly. Delivery orders can sync every few minutes during service. When that connection fails, the impact is immediate, so it needs proper testing before going live.

Now look at who picks up the work when there is no connection. An hour of re-keying by a manager after close is a cost you can measure. A report that nobody touches until the monthly export can wait.

What happens when it goes wrong? A loyalty sync failing quietly for a week is inconvenient. An order injection failure during Saturday service can mean lost revenue and a poor guest experience.

The five categories that usually earn their place

Online ordering and delivery

If your restaurant does any meaningful off-premise trade, this is the first integration to get right. The operational case is simple. Orders arriving through a marketplace tablet have to be typed into the till by somebody, usually during the busiest part of service, usually by the person you would rather have on the pass. Direct injection into the POS and kitchen display removes that step and the errors that come with it.

Guest expectations point the same way. In Toast's UK menu trends consumer survey, the two factors that mattered most when choosing where to order delivery were low delivery fees at 34% and fast delivery with accurate ETAs at 31.5%, well ahead of packaging at 10.5%. Accurate timings depend on the kitchen knowing about the order the moment it lands, which is an integration outcome rather than a service one.

Payroll, scheduling and labour

Labour is the cost line most exposed to manual error, and the one where regional detail actually matters. Survey data from our Voice of the UK Restaurant Industry 2025 found scheduling software in use at 56% of restaurants and payroll software at 55%, which are among the highest adoption rates of any back-of-house category. They are also frequently separate systems, which means somebody is moving hours from one to the other.

If you operate across the border, ask how the payroll integration handles other-nation taxpayers. For example, Scottish Income Tax applies based on where an employee lives, not where the venue is, and HMRC identifies employed Scottish taxpayers with an ‘S’ tax code. Confirm the setup with both the provider and whoever runs your payroll.

Accounting and finance

Accounting shows the trade-off between connectivity and complexity clearly. The Voice of the UK Restaurant Industry 2025 found that 54% of UK restaurants use accounting software. A daily sales sync with Xero or QuickBooks can reduce the manual entry required before reconciliation. Poor mapping can still create errors that remain hidden until a monthly or year-end check.

Poorly mapped accounting data can be worse than no integration. Errors build quietly and may not surface until year-end. Set up the connection with whoever does your books, then test it against a month you have already closed by hand. Pay close attention to the first reconciliation. Multi-site groups have more to gain, as bookkeepers can work from consistent data without signing in to every location. Once reporting is clean across sites, integration stops feeling optional.

Inventory and purchasing

Back to where this article started, because the gap between effort and method is wider here than in any other category, which makes it the biggest single gain available to most operators. Our back-of-house survey also found the most common reason owners count stock at all is preventing waste, named by 42%, ahead of controlling costs at 28%. That is the harder of the two jobs to do on a fortnightly count. Cost control can wait for the numbers. Waste cannot, because by the time a count reveals you have been over-ordering herbs for a fortnight, the herbs are already in the bin.

Using POS sales data to track depletion still leaves room for a physical count, but the count becomes a check on the numbers instead of the only way to build them. That can turn stocktake into a twenty-minute verification rather than a task you dread. It also helps explain why inventory often tops the list when operators are asked where they want to invest next.

Reservations, loyalty and guest data

The guest-facing category is the easiest to over-buy and the easiest to under-use. Toast’s Voice of the UK Restaurant Industry 2025 reported 44% adoption for loyalty software and 43% for marketing software.

Consumer appetite is not the constraint. In the Toast Consumer Preferences Survey 2025, 82.5% said they were likely or very likely to use a digital loyalty programme, and 81% preferred rewards delivered through a mobile app rather than QR scans on receipts or paper punch cards.

The integration point is that a loyalty programme disconnected from the till is a programme your team will forget to mention. When the guest record, the booking and the transaction sit in the same place, personalised service becomes something the whole team can deliver rather than a trick performed by whoever remembers the regulars. 

That matters more than ever given that improving customer experience was the top 2026 focus in both our UK Restaurant Industry Predictions 2026 and the London Restaurant Industry Report 2026, where 58% of London owners named it their main priority. It is also why reservations and waitlist tools tend to prove their worth through the data they capture rather than the covers they book.

What a fragmented stack actually costs you

Signature Brew, a London brewery and live music taproom, is a useful example because its problem was so common. Before Toast, Signature Brew used separate HR, stock and POS systems. When an item sold out, General Manager Claire had to update the POS, stock system and QR menu by hand. 

Consolidating the stack fixed the problem. One click now updates menus across the POS, stock system and QR menus. The team manages multiple venues from one system, while handhelds support the pop-up bars used on gig nights. General manager Claire’s team also has one support line instead of several. The result is more time on the floor when service is busiest.

Where this leaves you

Across every category, priority comes down to what happens without the connection.

A delivery failure hits revenue during service. Without a payroll connection, a manager can lose Monday morning to manual work. Accounting errors may sit unnoticed until year-end. Inventory can recover hours from stock control by using the one source that already knows what has sold: the POS. Guest data pays off when loyalty records and transactions sit together, making the programme easier for staff to use and harder to overlook.