Gabriela Earned Atlassian Certified Administration Expert — Three Exams in One Day
Mihai Perdum
Author
5 min readSeptember 21, 2026
Key takeaways
Gabriela is an Atlassian Certified Administration Expert, after passing ACP-220, ACP-420 and ACP-520 in one day (on top of her earlier ACP-120).
She also holds the Atlassian Certified Agile DevOps Specialist and ITSM Specialist designations — three Atlassian designations in total.
ACAE means holding four qualifying ACP certifications at the same time, not a one-time pass — any four of the five ACPs can form the path.
We rebuilt and expanded the free ACP practice exam bank today: 148 net-new questions across four exams, and 44 previously-disputed questions resolved against Atlassian's live docs.
All five practice exams (ACP-120, 220, 420, 520, 620) are free at leanzero.net/certifications — no account, no password, just your email.
Gabriela passed three Atlassian certification exams in one day yesterday. Not one — three: ACP-220, ACP-420 and ACP-520, on the same day, on top of the ACP-120 she'd already passed a couple of weeks earlier. That makes her an Atlassian Certified Administration Expert — the successor to the old ACE designation.
That's not the whole picture, either. Gabriela also holds the Atlassian Certified Agile DevOps Specialist and Atlassian Certified ITSM Specialist designations — three real Atlassian designations under one name on our team page now. That's a genuinely broad credential spread, earned the way everything at LeanZero gets earned: by actually doing the work.
I hold the Administration Expert designation too — I picked up my own four ACPs a couple of weeks ago (you can read how I studied for it). This article is about celebrating what Gabriela just did, not comparing the two of us.
What is an Atlassian Certified Administration Expert?
Our own certifications page explains what it actually means, and it matches what Atlassian's own designation program requires: you earn and maintain four qualifying ACP certifications at the same time to hold it. Any four of the five ACPs — Jira Administration, Confluence Administration, Jira Service Management, Cloud Organization Administration, or Jira Project Administration — can form the path. It's not a trophy for one exam; it's a standing bar you keep clearing.
Gabriela and I both leaned on LeanZero's own ACP practice exam bank to prep for our ACPs — it's the same tool our readers use, and neither of us got a shortcut around it. So when I say it's proven itself, I mean that literally, not as marketing copy.
The Agile DevOps Specialist and ITSM Specialist designations are a different track — they don't run through the same ACP exams, so I won't pretend our practice bank is what got her those two. They're their own real achievement, and I'm genuinely proud of her for going after all three.
The free ACP practice exams just got a real update
This article exists because of what we shipped to that practice bank today, and it felt right to tie the two together: Gabriela's news, and a genuine update to the thing that helped get her there.
Here's what changed, in real numbers, not rounded ones:
Exam
Questions before today
Questions now
ACP-120 (Jira Administration)
837
906
ACP-220 (Confluence Administration)
751
787
ACP-420 (Jira Service Management)
502
517
ACP-520 (Cloud Organization Administration)
468
496
ACP-620 (Jira Project Administration)
432
432
6 rows × 3 columnsHeader row enabled
That's 148 net-new questions across the four exams that grew, every one of them built the same way the rest of the bank already is: written fresh from Atlassian's own documentation, with the exact sentence that proves the answer quoted and linked, not copied from anywhere. We also went back through 44 questions across all five exams that an earlier review had flagged as disputed and resolved every single one of them against Atlassian's live documentation, today. Most turned out to already have the right answer; a handful got fixed.
ACP-620 didn't get new questions today — there wasn't fresh mock-exam material to mine new gaps from this round, so instead of pretending otherwise we labeled it "Experimental" on the site. Its 432 questions still went through the exact same testing as every other exam; the label is about where new content is still coming, not about trusting what's already there.
Why we bother with this
We didn't have to rebuild the bank today. We did it because we'd already promised to keep fixing what people find, and because we use the thing ourselves. Gabriela sitting three real exams in one day and passing all three is the actual test of whether a practice bank works — better than any review pass we could run on it ourselves.
If you're studying for any of the five ACPs, the practice exams are free — no account, no password, just your email. If you've used them before and hit a bad question, tell us — we've already shown we'll go fix it, today included.
And to Gabriela: three exams in one day, on top of everything else you've earned this year — genuinely impressive. Welcome to Administration Expert.
Descriptions truncated at exactly 32,767 characters. A custom field populated into a (migrated)-suffixed twin while the one on your screen stays blank. Here is how to find both, and the four-phase discipline that stops the repair becoming the next incident.
