Auto add watch list based on caller

Client-Side Components/Client Scripts/Auto-Add Watch List Based on Caller/ClientScript.js

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+function onChange(control, oldValue, newValue, isLoading) {
+if (isLoading || !newValue) return;
+
+// GlideAjax call to fetch department leads
+var ga = new GlideAjax('WatchListHelper');
+ga.addParam('sysparm_name', 'getWatchListByCaller');
+ga.addParam('sysparm_caller', newValue);
+ga.getXMLAnswer(function(answer) {
+if (answer) {
+// answer is comma separated list of sys_ids
+var currentWatchList = g_form.getValue('watch_list');
+var combined = currentWatchList ? currentWatchList + ',' + answer : answer;
+g_form.setValue('watch_list', combined);
+}
+});
+}

Client-Side Components/Client Scripts/Auto-Add Watch List Based on Caller/README.md

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+
+Auto-Add Watch List Based on Caller Department
+
+//Use Case : 
+
+Automatically adds relevant users to the Watch List field when a Caller is selected on Incident.
+Keep department leads or stakeholders automatically informed.
+
+//Logic: 
+
+Client Script runs onChange of the Caller field.
+Calls a Client callable Script Include ('WatchListHelper) via GlideAjax.
+Script Include fetches Department manager
+Adds their sys_id to the Watch List field.
+Prevents duplicates by appending to existing watch list values.

Client-Side Components/Client Scripts/Auto-Add Watch List Based on Caller/ScriptInclude.js

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+var WatchListHelper = Class.create();
+WatchListHelper.prototype = Object.extendsObject(AbstractAjaxProcessor, {
+
+getWatchListByCaller: function() {
+var callerId = this.getParameter('sysparm_caller');
+var watchListSysIds = [];
+var userGR = new GlideRecord('sys_user');
+if (userGR.get(callerId) && userGR.department) {
+// Fetch department managers
+var dept = new GlideRecord('cmn_department');
+if (dept.get(userGR.department)) {
+if (dept.manager)
+  watchListSysIds.push(dept.manager.sys_id.toString());
+}
+}
+// Return as comma separated string
+return watchListSysIds.join(',');
+},
+
+type: 'WatchListHelper'
+});