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?
A. The external ID referenced is not affected
B. A warning message is sent every time the record is accessed
C. Validation rules prevent this type of change
D. The field no longer acts as an external ID
Answer: D. The field no longer acts as an external ID
Any field type other than text, number or email cannot be uniquely identified, hence the inability to continue as an external ID.
Learn More :
Data Management
- 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?
- What is the maximum number of external IDs an object may have?
- Which of the following are true regarding an autonumber field?
- 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?
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?
- What is the maximum number of external IDs an object may have?
- Which of the following are true regarding an autonumber field?
- 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?