question UI Policy in Community Central forum

UI Policy

PolyannaS — Tue, 27 Jan 2026 14:51:48 GMT

I'm having trouble applying a simple display rule via Catalog UI Policy.

Rule: When selecting field A, a subsequent field is displayed with 4 items (which is the total number of items displayed by the field), but when selecting field B, the subsequent field should only show 3 items, hiding only 1.

What I've tried so far:
1st. Create rules using best practices by adding AND and OR as field conditions, e.g.:
u_name > is > A
u_name_test > in one of > 1,2,3,4
+ action = u_name_test (action correctly declared for field display)

u_name > is > B
u_name_test > in one of > 1,2,3
+ action = u_name_test (action correctly declared for field display)
2nd. Via the UI Policy script itself:
UI Policy condition -
u_name > is > A
Execute if true:
g_form.clearOptions('u_name_test'); g_form.addOption(''); g_form.removeOption('); execute if false: g_form.clearOptions('u_name_test'); g_form.addOption(''); ...

Could someone tell me if there have been any updates from the new version of the instance, Zurich version? Does anyone have a solution to help me?

Re: UI Policy

Nilesh Pol — Tue, 27 Jan 2026 14:59:34 GMT

@PolyannaS

Verify with Using g_form.clearOptions + g_form.addOption, instead of trying to remove one item, re-add all necessary items every time the condition changes. This is the most reliable way to handle dynamic choice lists in Catalog UI Policies.

UI Policy 1 (Condition: u_name is A)

Execute if True Script:

g_form.clearOptions('u_name_test');
g_form.addOption('u_name_test', '1', 'Item 1');
g_form.addOption('u_name_test', '2', 'Item 2');
g_form.addOption('u_name_test', '3', 'Item 3');
g_form.addOption('u_name_test', '4', 'Item 4');

UI Policy 2 (Condition: u_name is B)

Execute if True Script:

g_form.clearOptions('u_name_test');
g_form.addOption('u_name_test', '1', 'Item 1');
g_form.addOption('u_name_test', '2', 'Item 2');
g_form.addOption('u_name_test', '3', 'Item 3');

Re: UI Policy

sandeepdutt — Tue, 27 Jan 2026 15:01:53 GMT

Hi @PolyannaS ,

you can try the below code :