Tiếng Việt
日本語If you’ve ever been through an ERP rollout – Odoo, SAP, or anything else – you’ve probably heard (or said yourself) the line: “we’ll probably need to push go-live back another two weeks.” Running late is almost a rite of passage for ERP projects, yet few companies actually sit down and dig into why it happened this time.
This post won’t hand you one single right answer. Instead, we’ve rounded up the 5 most common reasons ERP projects fall behind schedule, based on the Odoo projects Sonix has delivered for SMBs in Vietnam – so you can check which ones sound a little too familiar.
Table of Contents
💡 Insight: In most delayed ERP projects Sonix has seen, the root cause is rarely technical. Delays usually start with an internal decision that got postponed, or data that wasn’t ready yet – small-looking things that end up holding the entire project hostage.
REAL TALK
5 common reasons ERP projects run late
Master data isn’t ready when implementation starts
Product catalogs, opening inventory, customer and vendor balances are often scattered across inconsistent spreadsheets. The implementation team has to pause and wait for the data to be cleaned up instead of moving forward with system configuration.
The decision-maker isn’t around when needed
Plenty of configuration questions – discount rules, purchase approval structures – need an immediate call from someone with real authority. When that person is stuck in meetings or traveling, the whole project timeline waits with them.
Project scope shifts midway through
One small customization request gets added after the plan is already locked in, and it drags another one along with it. Each change sounds reasonable on its own, but they add up to enough to push back go-live.
Internal staff can’t dedicate enough time to the project
The team involved in the rollout is usually still handling their day-to-day work at the same time. Once regular work takes over their calendar, testing and training sessions keep getting pushed back.
UAT gets cut short or skipped altogether
Under pressure to hit an already-announced go-live date, many teams decide to test quickly and move on. The result: issues surface right after go-live, and fixing them ends up taking longer than the UAT that got skipped.
LOOKING BACK
The common thread behind these reasons
Look closely at all five reasons and they circle back to one point: an ERP project isn’t just the implementation team’s job – it depends heavily on how ready and how committed the business’s own people are. The implementation team can configure the system on time, but it can’t clean up the client’s data for them, decide their purchase approval rules for them, or free up their staff’s time to test.
| Reason for delay | Party mainly responsible |
|---|---|
| Master data not ready | The business (preparing and cleaning the data) |
| Decision-maker unavailable | The business (making time for decisions) |
| Scope shifting midway | Both sides (agreeing on and controlling scope) |
| Staff lacking time to participate | The business (allocating staff time to the project) |
| UAT cut short | Both sides (agreeing on a realistic testing timeline) |
GET AHEAD OF IT
How to avoid delays before the project even starts
Most of the reasons above can be significantly reduced if they’re addressed during the planning stage, before the project officially kicks off: name a single person with real authority to make decisions throughout the project, start cleaning up data in parallel with contract signing instead of waiting until implementation begins, and put the project scope in writing so any new request gets weighed against its impact on the timeline before it’s added. If you need a team to walk through this planning stage with you, Sonix’s Odoo implementation service can help.
If your ERP project is still in the planning stage, now’s a good time to check for these familiar bottlenecks – rather than discovering them halfway through the project.
KEY TAKEAWAYS
| Key point | What it means for your business |
|---|---|
| Delays are rarely a purely technical problem | Most root causes come down to internal readiness and commitment. |
| Data and decision-makers are the two most common bottlenecks | Getting these two ready in advance meaningfully cuts delay risk. |
| Control scope creep in writing | Every new request should be weighed for its timeline impact first. |
| Don’t cut UAT short for the sake of a go-live date | Thorough testing before go-live is usually faster than fixing issues after. |
What made your ERP project run late? Tell Sonix in the comments!
If you’re preparing for an ERP rollout and want to get ahead of these common bottlenecks, book a 30-minute discovery call so Sonix can review your plan with you before you start.
Hundreds of businesses using Odoo in Vietnam have started their journey this way.
Sonix – Your success is our joy.
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