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Salesforce CRT-403 Exam - Topic 2 Question 81 Discussion

Posted by Rozella on May 26, 2026 at 09:08 AM

DreamHouse Realty wants to import its property records from an external system into Salesforce. The app builder will use an external ID field to house the property ID from the external system.

Which two field types are allowed as an external ID?

Suggested Answer: A, C

A: Number fields and C: Text fields can be set as External IDs. These field types are suitable for housing unique identifiers from external systems. References:

Salesforce Help - External ID Fields


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21 comments · newest first
SE
Serina 13 days ago
Exactly! Good luck, everyone!
BA
Barrett 18 days ago
Just need to remember the rules.
CA
Carmelina 23 days ago
Same here! It's straightforward.
RO
Roosevelt 28 days ago
I feel confident about this question.
TR
Trina 1 month ago
Yeah, external IDs need to be unique.
BE
Becky 1 month ago
A and C are safe choices.
SE
Serina 1 month ago
No, I don't think URLs work as external IDs.
BA
Barrett 2 months ago
But what about B? URL fields?
TR
Trina 2 months ago
I agree with A. Number fields are definitely allowed.
CA
Carmelina 2 months ago
Because text fields can hold external IDs.
SE
Serina 2 months ago
Why C?
CA
Carmelina 2 months ago
I think it's A and C.
RA
Rana 2 months ago
Yup, A and B are the correct choices!
ME
Mertie 3 months ago
Wait, can a Phone field really be an external ID? Sounds off.
NE
Nettie 3 months ago
C) Text field is not an option here, right?
YA
Yan 3 months ago
I agree, but B) URL field? Really?
MI
Mitzie 3 months ago
A) Number field is definitely one!
NI
Nickolas 3 months ago
I think Test fields are definitely not allowed as external IDs. I remember that from a practice quiz.
CA
Catrice 4 months ago
I definitely recall that Number fields are valid for external IDs, but I can't remember if Phone fields are.
AL
Albina 4 months ago
I feel like URL fields might not be allowed as external IDs. I need to double-check that.
CA
Carma 4 months ago
I think external IDs can be Number fields, but I'm not sure about the others. I remember practicing with similar questions.
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