Question

What is a dictionary override in Service Now?

Answer 1

Dictionary Overrides provides the capability to override several properties of a field in an extended table. For example a changing table is extended from the task table. There is a field named status in task table and set as read-only. When we use this field in change form it will show be a read only. We can set this to non-read only by using the dictionary override. Similarly there are other properties that can be set for the fields in an extended table.

Answer 2

Dictionary overrides allow for overriding various field properties in an extended table. Consider an example of a changing table that is extended from the task table. There is a status field in the task table which is set as read-only. If you use this field in change form, it will be in read-only mode. By using the dictionary override, we can alter this to non-read only.