Salesforce Facts by Abhishek

We have some setting and permission using which we can set the audit fields in the records. The audit fields include the fields: CreatedDate, LastModifiedDate, CreatedById, LastModifiedById. The SystemModStamp field however cannot be updated with this approach and this field is not writeable. Attached is the screenshot.  

There is a standard field SystemModStamp which is present in all objects. It is similar to LastModifiedDate field but the difference is, LastModifiedDate is the date and time when the record was last modified by the user whereas SytstemModStamp is the date and time when the record was last modified by a user or a standard automated process. Reference:  https://help.salesforce.com/s/articleView?id=000387261&type=1