Hello,
If you want it to be filled by administrators, you should set an access level and restrict it to your administrator group.
when i want to create new product or when i edit old one , the filed will not show in product page ?
it should be in custom filed place ?
Can you tell me how do you exactly want your field to be used ?
Note that if you want :
- to fill a field for your product
- to display it through your product detail page
The best solution will be to use a PRODUCT custom field, to fill it through your back-end product configuration page and they'll be displayed through your product detail page.