How to make variables mandatory or readonly if sc_task state will move cancell

[Santosh Oraon]

Hi Everyone,

I need some guidance on a ServiceNow requirement.

When the SC Task (sc_task) state changes to Cancelled, I want to make certain catalog variables either mandatory or read-only.

What is the best way to achieve this? Should I use a Catalog Client Script, UI Policy, Business Rule, or another approach?

Any suggestions or examples would be appreciated. Thanks!

[Ankur Bawiskar]

@Santosh Oraon 

if you are planning to make sure those variables are mandatory before cancellation then you should use onChange client script on sc_task, before update BR on sc_task as User can cancel it from list as well

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