Define Rules

Hi. anyone knows how I can define rules to block edit a field by role?

I.E.: I need to block posibility to add amount in an opportunity unless user were some specific role.

Thanks

If you’re looking for a good tutorial on permissions, here is one

https://docs.suitecrm.com/user/security-suite-groups/#_a_typical_hierarchy_setup

But if you’re asking for field-level permissions, SuiteCRM doesn’t do that out-of-the-box, it would require a simple code-customization or an add-on. In SuiteCRM permissions are always record-level (if you can edit one field, you can edit the other).