We are using Accpac 5.5 and we want to hide the unit cost filed on the PO for certain users. The reason is we use standard costs for material even for purchases. It is therefore extremely important that we do not let the Purchasing officers mess with the item unit costs. We tried the Security and there is no option to Lock editing of unit costs at PO level except at Invoice level. I have't seen how to customise the detail section except for hiding the entire detail section. Ideas?? Anyone!!