how to do this question

[user_20]

The 'priority' field on the incident form should be editable only by users with the 'manager' role

[Dr Atul G- LNG]

Hi @user_20 

That is the right approach. Priority should always be driven by Impact and Urgency. You can make these editable for all users or specific users as needed — but avoid making any direct changes to the Priority field. The best way to handle this is by creating a UI Policy or using ACLs.

[RaghavSh]

@user_20 Priority is dependent on impact and urgency and it should ideally always be read only.

Alternatively, you can setup ACL on impact and urgency fields, which will allow only manager role to edit impact and urgency.

So Automatically  priority  ( which ids dependent on impact and urgency) will follow the same ACL.

Please mark the answer correct/helpful accordingly.

[Bhuvan]

@user_20 

Priority field in incident table is a derived value and it is set by impact and urgency fields combinations in Lookup table 'dl_definition' table and mapping is maintained in 'dl_u_priority' table.

You can create ACL on impact and urgency fields on incident table to allow edit only for users with Manager role or create UI Policy to manage this.

As per community guidelines, you can accept more than one answer as accepted solution. If my response helped to answer your query, please mark it helpful & accept the solution.

Thanks,

Bhuvan

[Ankur Bawiskar]

@user_20 

Why to allow edit to priority when it's calculated based on Priority Matrix depending on Impact and Urgency?

OOTB it's disabled and I recommend not to alter the OOTB process.

Define priority lookup rules 

But If you still want then do this

1) Disable this OOTB UI policy

2) Create field level WRITE ACL for Priority Field and give manager role there in roles section

If my response helped please mark it correct and close the thread so that it benefits future readers.