You are here:
Changing Big Object Fields
Learn how big object fields differ from standard object fields when you update or delete them. Make sure that your big object is correct before you save it.
Updating Fields for Big Objects
If a field has an existing value, you can update it with a different value. You can’t update it with a NULL value. You can delete a record and recreate it if you want to change the value to NULL.
Most properties cause data mutation. You can’t change big object field properties that cause data mutation and you can’t edit the properties after you create an object. Properties that don’t cause data mutation are related to information about the data, such as labels or help text.
Deleting Fields for Big Objects
You can’t delete an individual field after the object is created. So if you want to delete a field from a Big Object, delete the object and then recreate it.

