Access to the system is controlled by the Security Profile to which a user is assigned. To see a module, transaction type or edit a record, the appropriate permissions must be in place.
These can be checked or modified by a user with sufficient access as follows:
Click System then select Security.
Find the security profile against the user.
Click Profiles and select the appropriate one.
Find the appropriate record or transaction option in the Permissions tab.
Click Edit, make the necessary changes then click Save.