An app builder needs to change the data types of a few custom fields. The app builder is not able to delete and recreate any of
the fields, nor modify any apex code. Which data type change will require the app builder to perform additional steps in order to retain existing functionality? A. Changing the datatype of a field used in a report from text to an encrypted field B. As an external ID from number to text C. In an apex class from number to text D. In lead conversion from number to text
Explanation: In lead conversion, for changing data type of the custom field the elimination of the lead field mapping takes place. To regain the function, field mapping is to be created again so that requirements can be contented.
Other options are incorrect because conversion from encrypted field cannot take place, apex class does not set the data type and external id can be changed but the requirement cannot be fulfilled .Thus, the correct option is option(D).
