How to evaluate List Collector values in Flow Designer and trigger approval based on keyword

[prudhvi67]

Hi Team,
I have a requirement in ServiceNow Catalog + Flow Designer and need some guidance.

Scenario:
I have two List Collector variables in a catalog item:

Variable A (List Collector)
Variable B (List Collector)

Both variables reference the same table and store multiple selected values (sys_ids).

Requirement:
When a user submits the request:

If any selected value (from either List Collector) contains a specific keyword (e.g., "Network")
- > trigger an approval step

If no such values are selected
- > skip the approval

What I implemented:

Created a Flow Variable (String)
Used Set Flow Variables  - > Scripted mode
Wrote a script to:

Loop through List Collector values
Retrieve display values using GlideRecord
Store matching values in an array
Return the final values as a comma-separated string

Script Used:

var values = [];

var appPerm = fd_data.trigger.request_item.variables. my_variable_a + '';
var delPerm = fd_data.trigger.request_item.variables.my_variable_b + '';

var gr = new GlideRecord('my_table_name');
var FIELD = 'data_stored_field_name';
if (appPerm) {
var arr1 = appPerm.split(',');
for (var i = 0; i < arr1.length; i++) {
if (gr.get(arr1[i])) {
var val = gr.getDisplayValue(FIELD) || '';
if (val.toLowerCase().indexOf('network') > -1) {
values.push(val);
}
}
}
}
if (delPerm) {
var arr2 = delPerm.split(',');
for (var j = 0; j < arr2.length; j++) {
if (gr.get(arr2[j])) {
var val2 = gr.getDisplayValue(FIELD) || '';
if (val2.toLowerCase().indexOf('network') > -1) {
values.push(val2);
}
}
}
}values.join(',');

Flow Variable - > contains "network"

Expected Behavior:

Approval should trigger only when values containing "Network" are selected
Should not trigger for other values