Salesforce Exam DEX-450 Topic 4 Question 109 Discussion

Actual exam question for Salesforce's DEX-450 exam

Question #: 109
Topic #: 4

Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a master-detail relationship with the standard Account object.

Based on some internal discussions, the UC administrator tried to change the master-detail relationship to a lookup relationship, but was not able to do so.

What is a possible reason that this change was not permitted?

ASome of the Vendor records have null for the Account field.

BThe Account object has a roll up summary field on the Vendor object.

CThe Account object does not allow changing a field type for a custom field.

DThe organization wide default for the Vendor object is Public Read/Write.

Show Suggested Answer

Suggested Answer: B

by Oretha at Feb 09, 2025, 03:54 AM

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Rusty

3 days ago

Wait, there's a custom object called 'Vendor'? I thought we only had 'Buyer' and 'Middleman' - this is getting too complex for me.

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Chu

4 days ago

I'm not sure, but option C also seems like a valid reason. The Account object might not allow changing a field type for a custom field.

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Latrice

7 days ago

I agree with Linette, the roll up summary field on the Account object could be the reason.

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Linette

9 days ago

I think the reason could be option B.

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Cora

12 days ago

Hmm, I'm guessing option B is the right answer here. Changing the relationship type would affect the roll-up summary field, so that's probably why it's not allowed.

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Rikki

13 days ago

If I can't change the relationship type, does that mean I'm stuck with a master-detail forever? That's like being trapped in a relationship you can't get out of - yikes!

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