Basically Permissions are related to "Tables".
Both Quotation and Order share the same table. For e.g. Sale Quote and Sales Order share the Sales Line Table.
Thus giving permission to Sales Line table will give access to both quotation and order
Permissions are based on objects, not tables only (tabledata, actually). However, it is not generally good practice to set access rights to data using forms. Moreover, you cannot set access rights on a form such that read (of the related data) is allowed, but not modification. You needed a second form which is designed to allow read only, and then some way to control, which form to show.
Comments
Both Quotation and Order share the same table. For e.g. Sale Quote and Sales Order share the Sales Line Table.
Thus giving permission to Sales Line table will give access to both quotation and order
NAV Functional Executive