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Salesforce CRT-403 Exam - Topic 2 Question 81 Discussion

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?
A) Number field and C) Test field
B) URL field
D) Phone field

Salesforce CRT-403 Exam - Topic 2 Question 81 Discussion

Actual exam question for Salesforce's CRT-403 exam
Question #: 81
Topic #: 2
[All CRT-403 Questions]

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?

Show Suggested Answer Hide Answer
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


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

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Mitzie
4 days ago
A) Number field is definitely one!
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Nickolas
9 days ago
I think Test fields are definitely not allowed as external IDs. I remember that from a practice quiz.
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Catrice
14 days ago
I definitely recall that Number fields are valid for external IDs, but I can't remember if Phone fields are.
upvoted 0 times
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Albina
19 days ago
I feel like URL fields might not be allowed as external IDs. I need to double-check that.
upvoted 0 times
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Carma
24 days ago
I think external IDs can be Number fields, but I'm not sure about the others. I remember practicing with similar questions.
upvoted 0 times
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