Invoice Processing
Supplier invoices should not create a chain of manual admin.
We automate the repetitive work around receiving, reading, checking, approving and entering incoming invoices, so your finance team spends less time moving data between emails, documents and systems.
Clear invoices can continue through the process automatically. Exceptions stay with your team.
The everyday admin
An invoice arrives by email.
Someone downloads it. Opens it. Checks the supplier. Reads the amounts. Enters the details. Sends it to someone for approval. Waits for a response. Updates the accounting system.
Then the next invoice arrives.
When invoices come through different channels and require multiple people or systems, processing them quickly becomes a recurring administrative task.
We connect those steps into one structured workflow.
Supplier invoices may come through shared inboxes, individual email accounts, portals or manual uploads.
Someone still needs to collect them before processing can even begin.
We can bring incoming invoices into one workflow so they can be handled consistently.
Supplier names, invoice numbers, dates, VAT, line items and payment details often need to be copied into another system.
We can extract the relevant information and prepare it for the next step in the process.
Does the supplier exist? Is the invoice already recorded? Does the amount make sense? Is required information missing?
Routine checks take time when someone has to perform them manually for every invoice.
We automate predictable checks and send uncertain cases to the right person.
Invoices often sit in inboxes waiting for someone to approve them.
Without a clear workflow, finance teams spend time chasing colleagues and checking which invoices are still waiting.
We route invoices to the right person and keep the status visible throughout the process.
A missing purchase order, unusual amount or unclear invoice should require judgement.
But identifying the problem should not require someone to search through several systems first.
We make exceptions visible and send them to the employee who needs to review them.
What we automate
We automate the repetitive steps while keeping people involved where judgement is needed.
Bring supplier invoices into one processing workflow, whether they arrive through:
Instead of invoices being processed differently depending on where they arrive, they can enter the same structured workflow.
Incoming invoices contain information your finance team needs somewhere else.
We can use AI to read and interpret information such as:
The extracted information can then be used for validation, approval and accounting.
Where information is unclear or incomplete, the invoice can be sent for review instead of being processed automatically.
Not every invoice should immediately continue to accounting.
We can automate routine checks against the rules and information already available in your business.
Depending on your process, this could include checking:
Invoices that pass the expected checks can continue through the workflow.
Anything uncertain can be flagged.
Duplicate invoices and unexpected amounts are easier to catch when checks happen consistently.
We can build checks that identify potential duplicates, missing information or values that fall outside your predefined rules.
The system does not need to make the final decision.
It can simply make sure the right person sees the invoice before it continues.
The right invoice should reach the right person without finance manually forwarding emails.
We can route invoices based on your internal rules.
That could depend on information such as:
The employee reviews or approves the invoice, after which the workflow continues automatically.
Once an invoice has passed the required checks and approvals, the relevant information can be passed into the next stage of your accounting process.
This reduces repeated data entry and keeps information moving without someone having to enter the same invoice details again.
Know where an invoice is without searching through inboxes.
We can keep track of stages such as:
Your finance team gets a clearer view of what has been completed and where attention is still needed.
Where it fits your process, approved invoices can continue into the payment-preparation stage.
The exact level of automation depends on your existing systems, approval requirements and internal controls.
Payments do not need to be made automatically for the invoice workflow itself to save administrative work.
Predictable work, clear exceptions
Automation works best when predictable work and human judgement are separated.
A straightforward invoice could follow a process like:
Invoice received → Data extracted → Checks passed → Approval completed → Accounting updated
But not every invoice is straightforward.
An invoice may have:
In those situations, we stop the automated flow and send the invoice to the appropriate employee.
Your team deals with the exception.
The workflow handles everything around it.
How it works
A typical automated supplier invoice workflow could look like this:
The invoice enters the workflow from email, a portal, an upload or another configured source.
Relevant supplier, invoice, VAT, line-item and payment information is extracted.
The workflow applies your predefined rules and compares the invoice with relevant information already available.
Missing details, possible duplicates, unusual amounts or uncertain matches are flagged.
Where approval is required, the invoice goes to the appropriate employee.
The workflow knows whether the invoice is waiting, approved or requires further attention.
Once approved, the invoice data can continue into your accounting process.
Anything outside the predefined process is sent to the right person for manual review.
Routine processing keeps moving.
Your team stays involved where judgement matters.
From manual to automated
Less repetitive data entry. Clearer approvals. Better visibility into what still needs attention.
Our services in practice
Incoming invoices are not always perfectly structured.
We use AI agents to read invoice documents, interpret relevant information and support routine checks.
They can help extract supplier, invoice, line-item, VAT and payment information, compare information with predefined rules and identify invoices that need additional attention.
AI handles the interpretation and repetitive checks.
Your team handles cases where the information is unclear or a decision requires judgement.
An invoice should not stop moving because someone forgot to forward an email.
We build workflows that move invoices through each stage of the process, from receipt and validation to approval and accounting.
The workflow determines what should happen next based on the status of the invoice and your business rules.
That reduces manual handovers and keeps processing consistent.
Supplier invoice information often needs to move between several systems.
We connect the tools involved in your process so invoice information can move between email, document storage, purchasing and accounting systems without being repeatedly copied by your team.
The exact setup depends on the systems you already use and what they support.
Give your finance team one place to see what is happening.
We can bring invoice, approval and exception information together so your team can quickly see which invoices are:
Instead of checking multiple inboxes and systems, your team can focus on the invoices that actually need attention.
Sometimes standard invoice-processing software does not fit the way a business works.
We can build focused software around your process, such as an internal invoice review screen, approval portal, exception queue or other tool that brings multiple steps together.
The goal is not custom software for its own sake.
We build it where it solves a process that standard tools cannot handle well.
Human control, built in
Invoice processing does not need to be completely touchless to be useful.
We design automation around the level of control your business needs.
Clear and predictable invoices can continue through predefined steps when the required information is available and the necessary checks have passed.
Invoices can be prepared and validated automatically while still requiring approval from the appropriate employee before they move forward.
Missing information, uncertain matches, unusual amounts and other exceptions can be sent directly to the person responsible for reviewing them.
Automation removes repetitive work. It does not remove the judgement of your finance team.
Two sides of your finance operation
The two processes sit on opposite sides of your finance operation.
This page covers incoming supplier invoices.
We automate how invoices are received, read, checked, approved and processed before they move further through your accounting and payment process.
Supplier → Your business
This covers outgoing customer invoices.
We automate invoice creation, sending, payment tracking and friendly follow-up on outstanding balances.
Your business → Customer
Both can be automated, but they solve different administrative problems.
The NexFlow method
We map your current supplier invoice process from the moment an invoice arrives until it has been approved and processed.
We identify where people are manually entering information, checking invoices, forwarding documents or tracking status.
We look at how often those tasks occur and which parts of the process are repetitive enough to automate.
This helps us focus on opportunities that make practical sense for your finance team.
We build the workflow around your existing process, rules and systems.
That can include invoice collection, data extraction, validation, approvals, accounting entries, status tracking and exception handling.
Once the process is running, we can improve the workflow as your volumes, systems or approval requirements change.
Your questions, answered
Invoice processing covers the steps required to handle supplier invoices coming into your business.
That typically includes receiving the invoice, extracting information, checking it, getting the required approval and entering approved information into your accounting process.
AI can help extract and interpret information from invoice documents.
However, not every invoice will contain perfectly clear or consistent information.
We design the workflow so uncertain information can be flagged for human review rather than assuming every extraction is correct.
Where purchase-order information is available within the process, invoices can be compared with relevant existing records as part of the validation workflow.
How this works depends on your systems and the information available.
We can build checks that identify potential duplicate invoices based on the information available in your process.
Potential duplicates can then be held for review rather than automatically continuing.
Yes.
We can route invoices to the appropriate employee based on predefined business rules and track whether approval is still outstanding.
Not necessarily.
You determine which invoices require approval and which predictable cases can continue automatically.
The workflow can apply different rules to different situations.
Where your existing software and process allow it, approved invoice information can be passed into the accounting stage automatically.
We review what is technically and operationally appropriate during the Automation Scan.
The workflow can prepare approved invoices for the next stage of the payment process where appropriate.
The exact setup depends on your systems, internal approval requirements and the level of control you want to maintain.
We send it to the appropriate person for review.
Missing information, uncertain matches, unusual amounts and other exceptions do not need to block the rest of the invoice process.
No.
Invoice Processing covers supplier invoices coming into your business.
Invoicing & Collections covers invoices you send to customers and the follow-up of outstanding payments.
Receiving invoices, entering data, chasing approvals and checking statuses are necessary tasks.
They do not all need to be manual.
We identify which parts of your current supplier invoice process can be automated, which steps should remain under human control and how those steps can work together in one structured workflow.
Find out which parts of your supplier invoice process we can automate.