Hey @Jaspreet Kaur B ,

When you say 'looking into Incident table API', are you talking about ServiceNow Table Rest API documentation?

If so, the fields that you mentioned (i.e. u_summary_notes, u_impact_extent, u_impact_type) are all custom fields and won't be in the official documentation. But that doesn't mean that you can't use them in your API.

Note that any fields that are prefixed with 'u_' are custom fields.

Thanks