You’ve been running a process on a spreadsheet for years. It works, more or less. People know how to use it. But the spreadsheet has become unwieldy. You’re emailing versions back and forth, worrying about someone overwriting someone else’s changes, and spending time on data entry that feels like it should be automated.
Someone suggests Power Apps. It sounds like it could solve your problems. Before you start, you need to know: is this actually a good fit for Power Apps? What would migration look like? And what mistakes do organisations commonly make when moving from spreadsheets to apps?
This guide helps you think through that decision.
When Excel or SharePoint Lists Are Actually a Problem
Not every spreadsheet should become an app. Some spreadsheets work fine. The question is: what’s actually broken?
Spreadsheets that stay spreadsheets
Some data is genuinely best in Excel. If you’re running a one-off analysis, Excel is faster than building an app. If you’re doing complex calculations with lots of intermediate steps, a spreadsheet is often clearer than an app. If the process is stable and only a few people touch it, the friction of a spreadsheet might not be worth solving.
Spreadsheets that have outgrown themselves
Other spreadsheets have become a source of friction, and that’s when you should consider moving to Power Apps:
Repetitive data entry. You’re manually entering the same data week after week, month after month. The work is predictable and rules-based (fill in this field, validate that field, submit). This is the classic Excel-to-Power-Apps candidate. A form that guides someone through the process is faster and more accurate than a spreadsheet row.
Multiple people editing the same file. You email the spreadsheet to team members, they edit it, they send it back, and someone overwrites someone else’s changes. Or you end up with five versions of the file floating around and nobody knows which one is current. Shared spreadsheets are a common source of data conflicts. A Power App with proper access control solves this.
Data validation and consistency. You’ve tried to enforce rules in Excel (this field must be a date, this field can only be one of five values, that field is required). But people bypass the rules by editing cells directly. A Power App enforces rules at the database level, not just in the UI.
Approval workflows. Your process involves “someone fills in a request, someone else approves it, then it goes somewhere else.” You’re using comments and status columns to track this. A Power App can automate the workflow, routing requests to the right person and notifying them automatically.
Mobile access. Your team needs to fill out forms on a site visit, in a field, or in a meeting. Excel on a phone is painful. A Power App designed for mobile is fast and reliable.
Reporting and dashboards. Your spreadsheet has hidden formulas calculating totals and status counts. You manually create reports from the data. Power Apps integrates with Power BI, so you can build dashboards that update automatically.
If any of these describe your situation, Power Apps is probably worth considering.
The Migration Checklist: What to Plan Before You Start
If you’ve decided to move, don’t just start building. Take time to plan. This checklist helps.
Step 1: Understand your current data structure
Before you build anything, understand what you’re actually working with.
What data do you collect? List every field in your spreadsheet. First name, last name, email, date submitted, approval status, budget amount, category, comments. Every single one.
How is the data related? Is this all one flat table, or do you have separate sheets that relate to each other? Example: a “Requests” sheet and an “Approvals” sheet that both refer to request IDs. Understanding relationships now saves you from building the wrong structure later.
How much data do you have? If you have 500 rows, Power Apps handles it easily. If you have 50,000 rows, you need to think about performance and might need to archive old data. If you have years of historical data, you might migrate only recent data and keep history in Excel.
What calculations or summaries do you run? Are there formulas in your spreadsheet that compute totals, averages, or status flags? These become rules or calculated fields in Power Apps.
Step 2: Decide who needs access and how
This seems obvious, but it’s easy to overlook.
Who fills out the form? Is this a process that 5 people use, or 500? The number affects complexity. Five people, you might train them personally. 500 people, you need clear documentation and support.
Who approves or reviews? Is there a manager who signs off on every entry? Multiple people at different stages? A Power App can route requests automatically, so you need to define that flow.
Who reports on this data? Does someone need a dashboard showing how many requests came in this week? How many are pending approval? These reporting needs affect what you build.
Does anyone outside your organisation need access? Clients, vendors, external partners? Power Apps can be built for internal or external users, but the security model is different.
Step 3: Think about the user experience
How people actually use the app matters more than you might think.
Desktop, mobile, or both? If everyone works from an office and only touches this process at a desk, desktop is fine. If people work in the field, on client sites, or in meetings, you need a mobile-friendly design. Mobile Power Apps are built differently from desktop apps.
How much training can you provide? Simple apps need minimal training. Complex processes with lots of conditional logic might need documentation, videos, or live training. That affects your timeline and complexity.
What happens when someone makes a mistake? Can they go back and edit their entry? Can they undo a submission? These user experience decisions affect how you design the app.
Step 4: Plan for data migration
Your Excel data isn’t going to magically move into Power Apps. You need a plan.
How do you get data into Power Apps? You can manually re-enter it (slow but guaranteed clean), export from Excel and import to Dataverse (faster, but data quality issues become visible), or use Power Automate to move data programmatically.
What data actually needs to migrate? Do you need five years of historical data, or just the last year? Historical data is bulk and complexity. Consider archiving old data in Excel and starting Power Apps with recent data.
How do you validate the migrated data? After you move the data, someone needs to spot-check it. Did all the dates come across correctly? Did all the lookup relationships preserve? Don’t assume the migration was clean.
Step 5: Decide on workflow and automation
This is where Power Apps becomes more than a form.
What should happen automatically? When someone submits a request, should it automatically notify the approver? Should the app automatically assign it to a category based on the data entered? Should it create a follow-up task?
What requires human decision? What can’t be automated and still needs a person to review and act?
Do you need to integrate with other systems? Does the request need to show up in an email, Slack, Teams? Does it need to create a task in another app?
Start simple. Get the basic form working before you add automation. Automation can come later.
Common Mistakes When Migrating from Excel
Organisations often hit the same pitfalls. Knowing about them helps you avoid them.
Mistake 1: Recreating the spreadsheet, not redesigning the process
This is the most common mistake. You build a Power App that looks exactly like your spreadsheet, with the same fields in the same order. It’s faster to build, but it misses the point.
The spreadsheet was a workaround. The process probably has steps that don’t need to be there anymore. Questions that could be hidden based on answers to other questions. Fields that don’t make sense together.
When you move to Power Apps, redesign. Ask: “If someone was building this process from scratch, what would it look like?” That’s often different from “what does the spreadsheet look like?”
Mistake 2: Not involving users until the app is done
You build the app in a vacuum, then show it to the people who actually use it. They hate it. It’s not what they expected. You have to rebuild.
Involve users early. Show them sketches of the form, not just finished apps. Ask them: “Does this flow make sense? Is this the information we need?” User feedback in week two is much cheaper than user feedback in week eight.
Mistake 3: Skipping user testing with real data
Testing with five perfect data entries is different from testing with real messy data from your team. Common issues:
Someone enters a date in a format the app doesn’t expect. Someone attaches a file that’s too large. Someone finds a combination of answers that breaks the business logic you built.
Have actual users test with realistic data before you go live. Budget time for that.
Mistake 4: Not planning for mobile upfront
You build a desktop Power App, it’s beautiful on a monitor, then someone tries to use it on their phone and it’s unusable. The buttons are too small, scrolling is endless, form fields are cramped.
If mobile is a requirement, test on mobile from the start. Mobile Power Apps are built in a different mode and look different.
Mistake 5: Underestimating the training piece
The app is built. It works. You send out an email: “Use the new app instead of the spreadsheet.” People don’t use it, or they use it wrong, and you end up back on the spreadsheet.
People need to understand why the change happened (what was broken with the spreadsheet), how to use the app (walkthrough or training), and what to do when they’re stuck (support contact).
Budget time for training and support, not just building.
What You Can Realistically Expect
Your timeline and complexity depend on your situation. If you’re moving a simple data entry form, the timeline is measured in weeks. If you’re automating a complex approval workflow with multiple stages and integrations to other systems, it’s measured in months.
Our Power Apps development timeline guide goes into more detail on realistic timelines based on complexity. The key point: start simple, get it working, then add features once people are actually using it.
The Decision: Should You Move?
Before you start, ask yourself:
- Is the spreadsheet causing real problems? People are making mistakes, processes are slow, data quality is suffering.
- Is Power Apps actually the right solution? Or would a SharePoint list with better access control be enough? Or a different tool altogether?
- Do you have support to build and maintain it? Either someone on your team who can build and update the app, or a partner you can call when something breaks or needs changing.
- Are you willing to redesign the process, not just recreate the spreadsheet? If you want the app to look exactly like your spreadsheet, you’ll miss most of the benefits.
If you said yes to most of these, moving from Excel or SharePoint to Power Apps makes sense.
Your Next Step
If you’re managing a process on a spreadsheet and wondering whether Power Apps is a fit, start with this checklist. Go through each section. Understand your data structure. Think about who needs access. Involve your team in the design.
Then, either build it yourself if you have someone with Power Apps experience, or book a discovery call to talk through your specific process and whether an app would actually solve your problem. Sometimes the answer is yes. Sometimes it’s “let’s fix your Excel process first, then revisit this in six months.”
Either way, the decision should be informed, not rushed.
