Which of the following is true that can cause data loss when an existing custom field is changed? (Choose all that apply.)
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A. B. C. D.ABCD.
When an existing custom field is changed, there are certain scenarios that can cause data loss. These scenarios are as follows:
A. Changing to or from type Date or Date/Time: Changing a custom field's data type from Date/Time to Date or vice versa can cause data loss because the fields hold different amounts of data. A Date field can store only the date, while a Date/Time field can store both the date and time.
B. Changing to Number from any other type: Changing a custom field's data type to Number from any other data type can cause data loss. If the field contained text or picklist values, that data will be lost since Number fields can only store numerical data.
C. Changing to Number from Percent: Changing a custom field's data type from Percent to Number can cause data loss. When a Percent field is converted to a Number field, the percentage values will be lost, and the field will only contain numerical data.
D. Changing to one Currency from any other currency type: Changing a custom field's currency type can cause data loss. If the currency type is changed from one currency to another, the values in the field will be recalculated based on the exchange rate between the two currencies, potentially resulting in data loss.
It's important to note that these scenarios can cause data loss, but not in all cases. It's possible to change a custom field's data type without losing data if the new data type can accommodate the existing data. For example, changing a custom field from Text to Picklist will not cause data loss if the picklist values are a subset of the text values. However, it's still important to exercise caution when changing custom field data types to avoid unintended consequences.