brotherton-erpnext/erpnext/docs/user/manual/en/customize-erpnext/articles/perm-level-error-in-permission-manager.md

Perm Level Error in Permission Manager

While customizing rules in the Permission Manager, you might receive an error message saying:

For System Manager_ (or other role) _at level 2_ (or other level) _in Customer_ (or document) _in row 8: Permission at level 0 must be set before higher levels are set.

Error message indicates problem in the existing permission setting for this document.

For any role, before assigning permission at Perm Level 1, 2, permission at Perm Level 0 must be assigned. Error message says that System Manager has been assigned permission at Perm Level 1 and 2, but not at level 0. You should first correct the permission for System Manager's role by:

• Assigning permission to System Manager at level 0.

Or

• By removing permission at level 1 and 2.

After executing one of the above step, you should try adding additional rules in the Role Permission Manager.