I want to have my employee access to the Campaign field in the Sales Orders and Invoices. (Other Info  Tab )

She is Sales Administrator and Billing Administrator, but she can't see those fields. I am lost, can't find the proper setting anywhere. any help?

I would love to add screenshots, but this forum gives me this error:

Access ErrorYou are not allowed to access 'ir.attachment' (ir.attachment) records. This operation is allowed for the following groups: - User types/Internal User - LATAM CRM/Tickets Custom Contact your administrator to request access if necessary.

Support  chat  doesn't  want  to  help. 

I  can't  add  links  either  because  the  break  the  post.