Need to auto create change request with change tasks creation for monthly patching activity

[Arjun Reddy Yer]

required help @Vasantharajan N @Ankur Bawiskar @Voona Rohila @WillieW @RaghavSh @Matthew_13 @SumanthDosapati 

As I need to automate the standard change request creation every 2nd Friday of the month for the change templates that I have with me.

Along with that change tasks also need to create and those change tasks need to auto assign to assignment groups that I have mentioned

Short Description: [assignment_group] Microsoft Patching

Description: New Microsoft patches installed

Change Template:

1. Monthly Microsoft Patching

2. Monthly PMPC Patching

Assignment Groups:

1. Supply Chain Engineering
2. Corporate Engineering
3. Digital Engineering

Tried below Schedule Job:

with below script Change request and change task is getting created but the fields in the change request are not getting populated with the change template field values and it should execute on 2nd Thursday of every month so replaced with 4.

(function() {
    var templateName = 'sys ID of the Template'; // Replace with your template name
    
    var change = new GlideRecord('change_request');
    change.initialize();
    change.type = 'standard'; // Ensure the change type is standard

     // Apply the template
    if (change.applyTemplate(templateName) == 0) {
        gs.info('Template applied successfully to change request');
    } else {
        gs.info('Failed to apply template');
    }

    // Insert the change request
    var changeSysId = change.insert();
    gs.info('Standard change request created: ' + changeSysId);

    // logic to create change tasks
	
    var rec = new GlideRecord('change_task');
    rec.initialize();
    rec.change_request = changeSysId;
    rec.short_description = 'Your Testing';
	rec.description = 'Confirm business application functions as it should with new Microsoft patches installed.';
    rec.assignment_group.setDisplayValue('Supply Chain Engineering');
    rec.insert();

})();

  Error when checked in Background script:

*** Script: Failed to apply template
#### Compiler Stats ####
Compiles: 1, time: 924ms
Total classes: 8, bytecode length: 0
Total loaders created: 8, unloaded: 8, existing: 0
Interpreted compiles: 18,800, time: 8,961ms
Cache name: "syscache_expression", max: 7,447, size: 7,678, seeks: 194,386,910, hits: 97,178,102, misses: 97,208,808, flushed: 0, row evictions: 0, single key evictions: 7,460, puts: 0, reclaims: 0, time from last reclaim to recreation total ms: 0, average time from last reclaim to recreation ms: 0
*** Script [TaskSLAFlow]: 2025-12-15 06:47:37.852 start: failed to start Flow "Default SLA flow" for Task SLA bfad3eca933db210fc57ff584dba1008:
com.snc.process_flow.exception.ProcessAutomationException: Failed to find complex object schema
*** Script [TaskSLAFlow]: 2025-12-15 06:47:37.883 start: failed to start Flow "Default SLA flow" for Task SLA 37ad3eca933db210fc57ff584dba100c:
com.snc.process_flow.exception.ProcessAutomationException: Failed to find complex object schema
Slow business rule 'Run SLAs' on change_request:<span class = "session-log-bold-text"> CHG0047407</span>, time was: 0:00:00.123
notification.provider: For Synchronous Providers: Loaded 0 recipients and 0 destinations and delivered to 0 destinations in 2ms
TriggerEngine:runEngine took 0.006ms to process for 'insert' operation on the record change_request[ffadba0e93f5b210fc57ff584dba101c]
*** Script: Standard change request created: ffadba0e93f5b210fc57ff584dba101c

[Arjun Reddy Yer]

But it's creating Change Request Type: Normal not Standard

And in the Error log it's showing as when I run the script in the background script.

Failed to apply template

[SumanthDosapati]

@Arjun Reddy Yer 

Try below changes :

1. In the starting of your script, change the below from
   

   var templateName = 'sys ID of the Template';​

   
   TO
   

   var templateName = 'Name of the Template';​

2. Change the below from
   

    // Apply the template
       if (change.applyTemplate(templateName) == 0) {
           gs.info('Template applied successfully to change request');
       } else {
           gs.info('Failed to apply template');
       }

   TO

   change.std_change_producer_version = 'sys_id'; // Sys ID of the Standard Change Templates version
   change.applyTemplate('templateName');