I have customised the ‘CRM Lead’ doc type in desk. However when I go to create a new lead in the CRM the fields do not show. Is this the way to create custom fields? Or there is a more CRM specific way? Or not yet possible?
You can check the docs to add custom fields in Lead / Deal page in right sidebar panel
docs.frappe.io/crm
If you want to add custom fields in quick entry form it is still work in progress but you can add by updating the JSON check CRM Fields Layout doctype there you will find “CRM Lead-Quick Entry” in that doc you can update the list and add more fields
Edit: I have created Quick Entry Layout Builder and now you can add or rearrange fields in quick entry form check docs for more detail