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Adobe AD0-E716 Exam - Topic 12 Question 54 Discussion

An Adobe Commerce developer has installed a module from a third-party vendor. This module fires a custom event named third_party_event_after and also defines an observer named third_party_event_after_observer that listens to that event. The developer wants to listen to this custom event in their own module but wants to execute their observer's logic after the third_party_event_after_observer observer has finished executing.What would the developer do to ensure their observer runs after the observer defined by the third-party module?
B) Set the sort order of the new observer to be less than that of the third-party vendor's observer.
A) Ensure the third-party module is listed in the <sequence> node of the developer's module.xmi file.
C) This is not possible as observers listening to the same event may be invoked in any order.

Adobe AD0-E716 Exam - Topic 12 Question 54 Discussion

Actual exam question for Adobe's AD0-E716 exam
Question #: 54
Topic #: 12
[All AD0-E716 Questions]

An Adobe Commerce developer has installed a module from a third-party vendor. This module fires a custom event named third_party_event_after and also defines an observer named third_party_event_after_observer that listens to that event. The developer wants to listen to this custom event in their own module but wants to execute their observer's logic after the third_party_event_after_observer observer has finished executing.

What would the developer do to ensure their observer runs after the observer defined by the third-party module?

Show Suggested Answer Hide Answer
Suggested Answer: B

To ensure that the developer's observer runs after the observer defined by the third-party module, they need to set the sort order of the new observer to be less than that of the third-party vendor's observer.

The sort order is a number that is assigned to each observer. The lower the number, the earlier the observer will be executed.

For example, if the third-party vendor's observer has a sort order of 10, the developer's observer would need to have a sort order of 9 or lower.


by Ona at Jan 05, 2026, 05:16 AM

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Beckie
1 month ago
Definitely B! It’s all about execution sequence.
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Ivory
1 month ago
Option C seems wrong. We can control the order.
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Arlie
2 months ago
Agreed! Lower sort order means it runs after.
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Ahmad
2 months ago
I think option B is the best choice. Sort order matters.
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Judy
2 months ago
Definitely B! I've done it before, works like a charm.
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Walton
2 months ago
Wait, is it really possible to control the order like that?
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Lynelle
2 months ago
A sounds like a good idea too, but B is more straightforward.
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Lillian
2 months ago
I think C is a bit misleading. You can control the order with sort.
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Kenneth
3 months ago
B is the way to go! Just set the sort order lower.
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Pamella
3 months ago
I'm with Marvel on this one. B) is the way to make sure your observer runs after the third-party one. Gotta love those sort order tricks!
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Gene
3 months ago
Haha, C) is like saying "I don't know how to use the observer pattern, so it's not possible." Nice try, but B) is clearly the way to go.
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Shenika
4 months ago
C) is just plain wrong. The order of observer execution can definitely be controlled using the sort order.
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Alva
4 months ago
I agree with B. It's the only way to guarantee the order of execution for observers listening to the same event.
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Marvel
4 months ago
B) is the correct answer. Setting the sort order of the new observer to be less than that of the third-party vendor's observer will ensure that the developer's observer runs after the third-party observer.
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Catrice
4 months ago
I thought observers could be executed in any order, but maybe there's a way to set priorities that I'm missing.
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Katlyn
4 months ago
I recall a similar question where we had to manage observer priorities, and it seems like option B aligns with that concept.
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Annmarie
5 months ago
I'm not entirely sure, but I feel like the sequence node is more about module dependencies rather than observer execution order.
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Elvera
5 months ago
I think I remember that the sort order can control the execution sequence of observers, so option B might be the right choice.
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Annice
5 months ago
Okay, I think I've got it. B is the right answer. By setting the sort order of our observer to be less than the third-party one, we can ensure our logic runs after theirs. Nice, I feel confident about this now.
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James
5 months ago
I'm not too sure about this one. The question says it's not possible to control the order of observers listening to the same event, so I'm a bit hesitant to go with B. Maybe there's some other trick I'm missing here.
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Elza
5 months ago
Ah, I see what's going on here. The key is that we want our observer to run after the third-party one, so B is definitely the way to go. Setting the sort order is the best way to control the execution order of the observers.
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Loren
5 months ago
I'm a bit confused on this one. I know we need to make sure our observer runs after the third-party one, but I'm not sure if setting the sort order is the right approach. Hmm, let me think this through a bit more.
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Charolette
6 months ago
I think the answer is B. Setting the sort order of the new observer to be less than the third-party vendor's observer should ensure my observer runs after theirs.
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Marsha
1 month ago
I agree, option B seems right. Sort order matters.
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