What is the maximum number of external IDs an object may have?
A. 1
B. 2
C. 3
D. 4
E. 5
Answer: C. 3
For each object that can have custom fields, you can set up to THREE custom text, number, or email fields as external IDs. An external ID field contains record identifiers from a system outside of Salesforce.
You can use an external ID field to update or upsert records using the API. When using the API or import wizards for custom objects and solutions, you can use this field to prevent duplicates by also marking the field as Unique.
Note: Custom fields marked as Unique count against an object's limit of three External ID fields. Custom indexing that occurs automatically in the background by Salesforce does not count against External ID limits.
Learn More :
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- Picklist values that are not currently defined are retained when the picklist is changed to multi-select. True or False?
- Currently defined picklist values are retained when you change a picklist to a multi-select picklist. True or False?
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Data Modeling
- What are the two different user interfaces in Salesforce ?
- Which types of custom relationships that can be built on the Force.com platform?
- Where do I access the Schema Builder?
- What can be used to limit the records return when users utilize a lookup?
- Describe a Junction object.
- What happens to the object linked by a lookup field when the parent object is deleted?
- What is a self relationship?
- What is the maximum number of master/detail lookup relationships allowable per object?
- What is the maximum number of standard (non-master/detail) lookup relationships allowable per object?
- A standard object can be used as a detail record in a Master-Detail relationship True or False?
- An Owner field exists on a detail object in a master-detail relationship. True or False?
- What are some limitations for encrypted fields?
- Encrypted Data is a standard salesforce feature True or False?
- Encrypted fields can be used in search results. True or False ?
- In order to see encrypted data, which permission must a user have?
- A custom multi-select picklist can be used as a controlling field. True or False?
- What is the maximum amount of values allowed in a controlling field?
- With dependent picklists, what can Standard fields be used for?
- Which of the following are true regarding an autonumber field?
- What occurs if you change the datatype of a custom field that is set as an external ID, choosing a data type other than text, number, or email?
- Picklist values that are not currently defined are retained when the picklist is changed to multi-select. True or False?
- Currently defined picklist values are retained when you change a picklist to a multi-select picklist. True or False?
- What are the data loss effects resulting from a change in custom field type?
- How long are custom fields stored after deletion?