The answer should be B D.
A : If you convert an auto-number field into a text field, the data in that field remains unchanged. Also, you can safely convert a text custom field into an auto-number field without losing your data.
C : You can change custom picklists into multi-select picklists without losing any data.
Correct Answer are C & D
I have tried and tested
C
Changing to the selected data type will cause inactive picklist values to be lost.
D
Field Conversion
Long text areas do not support HTML markup.
What do you want Salesforce to do with the HTML markup in this field?
Remove the HTML markup. Only the content will be kept.
Keep the HTML markup. The markup will be visible on detail pages as plain text.
ANSWER: AB
Changing the data type of an existing custom field can cause data loss in these situations:
A. Data can be lost when converting from auto-number to text.
"Changing from Auto Number to any other type"
B. Data can be lost converting from number to currency (assuming that field lengths are identical).
"Changing to Currency FROM any other type"
NOT:
C. Data can be lost when converting from simple picklist to multi picklist.
"You can change custom picklists into multi-select picklists without losing any data."
D. Information can be lost when converting from text area (rich) to text area (long).
"You can convert rich text area fields into long text area fields only. Any images get deleted the next time you save the long text area field. "
https://help.salesforce.com/articleView?id=notes_on_changing_custom_field_types.htm&type=5
I think answers are CD
A If you convert an auto-number field into a text field, the data in that field remains unchanged.
B Data will not lost converting from number to currency(assuming that field lengths are identical)
B and C are corect.
Changing the data type of an existing custom field can cause data loss in these situations:
B- "Changing to Currency from any other type"
C- "Changing to Picklist (Multi-Select) from any other type"
Correct Answer is A&D
1. If you convert an auto-number field into a text field, the data in that field remains unchanged.
2. You can only convert rich text area fields into long text area fields. Any images are deleted the next time the long text area field is saved. After converting, markup is hidden in the long text area field but it is not removed from the record until you save the record. That way, the markup can be restored if you change your mind.
Changing to Picklist (Multi-Select) from any other type
Currently defined picklist values are retained when you change a picklist to a multi-select picklist.
If you convert an auto-number field into a text field, the data in that field remains unchanged. Also, you can safely convert a text custom field into an auto-number field without losing your data. Converting an auto-number field into any other data type results in data loss.
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