Last Updated: May 2026
Your purchasing manager just approved a $14,000 equipment order from a vendor your company has never used before. Nobody else knew about it until the invoice arrived.
Sound familiar? This is exactly the kind of thing that happens when your approval process lives in email threads and someone’s memory. One person might have been out of the office, maybe someone missed a reply, and suddenly a purchase order is moving forward without the right eyes on it.
Here’s the thing: Business Central approval workflows exist specifically to prevent this. And setting them up is more straightforward than most people expect. Let’s walk through how it works.
Why Use Business Central Approval Workflows at All?
Before getting into the how, it’s worth being clear on the why.
An approval workflow in Microsoft Dynamics 365 Business Central puts a formal gate on transactions before they can be processed or posted. A purchase order gets created, it triggers an approval request, the designated approver gets notified, and nothing moves forward until that approval happens. If the approver doesn’t respond within a set timeframe, the system can automatically escalate or send a reminder.
Business Central approval workflows replaces your current email, phone call process with a documented, auditable process. Every approval is logged. Every rejection is tracked. If something gets approved that shouldn’t have, you know exactly who approved it and when.
For mid-sized distribution and manufacturing companies especially, this matters. You’re dealing with a high volume of purchase orders, multiple departments buying things, and real spend control requirements. Manual oversight doesn’t scale. A properly configured Business Central approval workflow does.
What Three Things Do You Set Up First?
Before you create a single workflow, there are three setup steps that need to happen in Business Central. Skip these and the workflow won’t function correctly.
1.Approval User Setup. This is where you define who can approve what, and up to what dollar amount. Go to Approval User Setup in Business Central and add every person who will either request approvals or approve them. This is also where you set approval limits. A department manager might be able to approve purchase orders up to $10,000, while anything above that automatically routes to a VP or the CFO. You can also define an approver chain here, so requests move up the hierarchy automatically based on the amount.
2.Notification Business Central can notify approvers by internal note or by email. For most companies, email is the right call since approvers aren’t always sitting in Business Central when a request comes in. On the Notification Setup page, you configure how each user receives notifications and how often. You can set notifications to go out instantly when a request is submitted, or batch them on a schedule if your team prefers a daily digest approach.
3.Workflow User Groups (if needed). If you have situations where a purchase order needs sign-off from multiple people, such as finance and operations both reviewing orders above a certain threshold, Workflow User Groups let you define those multi-approver sequences. You set the order, and Business Central routes the request through each approver in sequence before the document is released.
Getting these three things configured correctly upfront saves a lot of troubleshooting later.
How do you Set up a Purchase Order Approval Workflow in Business Central?
Once your users and notifications are configured, the actual workflow setup is easier than it sounds. Business Central includes a built-in template called the Purchase Order Approval Workflow, which covers the most common scenario right out of the box.
Here’s how to get it running:
Start from the Workflow Templates page. Navigate to Workflows in Business Central, select New, and choose New Workflow from Template. Find the Purchase Order Approval Workflow template and select it. This creates a new workflow with the standard steps already built in.
Set your event conditions. The template triggers when a purchase order approval is requested, but you can narrow this down. Most companies add conditions such as Document Type equals Order, and Amount is greater than a certain threshold. That way, small, routine purchases under your threshold move through without an approval step, while anything above it gets routed for review. If you need different approval rules for different amount ranges, you create separate workflows for each tier.
Configure the approval response. This defines what happens after the trigger fires. The standard response creates an approval request entry and locks the purchase order from being posted until it is approved. You can also add a response step that notifies the original requester when their PO is approved or rejected, which is a small thing that makes a big difference in day-to-day usability.
Enable the workflow. Once everything looks right, flip the Enabled toggle at the top of the workflow page. The workflow is now live. From this point forward, any purchase order that meets your conditions will require approval before it can be processed.
Microsoft’s official walkthrough on setting up and using a purchase approval workflow is a solid reference if you want to go deeper on any of these steps.
What Catches People Off Guard with Approval Workflows?
Business Central approval workflows are fairly intuitive once you understand the logic, but there are a couple of things worth knowing before you go live.
You need to set up the approver before the requester. In the Approval User Setup page, the approver’s record has to exist before you can assign them as an approver to someone else. If you try to set up a requester first, the system won’t have an approver to link them to. Work from the top of your approval hierarchy down.
Each workflow handles one condition set. If you need different approvers for amounts under $5,000 versus amounts over $5,000, that’s two separate workflows, not one workflow with multiple conditions. This trips people up when they’re first building out their approval structure.
Overdue approvals need their own workflow. If you want Business Central to automatically send reminders when an approval request has been sitting unanswered too long, that’s a separate workflow template called MS-OVERDUE-01. It doesn’t come enabled by default, so if you want those reminders, make sure you activate it.
Test before you go live. Create a few sample purchase orders in a test environment with different amounts and vendors to confirm the routing is working the way you expect. It takes 20 minutes and prevents a lot of headaches on day one.
How do Approval Workflows Connect to the Rest of Business Central?
Approval workflows are one of those features that seem like a small operational detail until you see what they actually connect to. When your purchase order approval process is running cleanly inside Business Central, it feeds accurate, timely data into your financial reporting, your cash flow projections, and your vendor management.
That’s the real value of having everything in one system. When your working together, a properly configured approval workflow doesn’t just stop a bad purchase order. It creates a clean audit trail, keeps your AP team from processing unauthorized invoices, and gives your finance team confidence in the numbers they’re reporting.
If you are newer to what Business Central can do across the board, the Microsoft Dynamics 365 Business Central overview on our site is a good place to start. And if you’ve been using BC for a while and want to get more out of it, features like job queues and fixed allocations are worth exploring alongside your workflow setup.
Getting Help with Your Business Central Workflow Setup
Business Central approval workflows are configurable enough that getting them right for your specific business, your approval hierarchy, your dollar thresholds, and your notification preferences benefits from working with someone who knows the system well.
CAL Business Solutions is a Microsoft Dynamics 365 Business Central implementation partner serving manufacturing, distribution, and professional services businesses across the United States. If you want help configuring your approval workflows or reviewing your current setup, contact us and we’re happy to walk through it with you.
