Sure, I can guide you on how to create a custom action in ServiceNow Flow Designer. Here are the steps:
1. Navigate to Flow Designer in ServiceNow.
2. Click on "New" and select "Action".
3. Provide a name for the action and select the application scope.
4. In the "Inputs" section, define the inputs required for your action. In your case, it would be the sys_id of the catalog item and the variable set name.
5. In the "Steps" section, you can add the logic for your action. You can use the scripting APIs provided by ServiceNow to fetch the catalog variable. Here is a sample code snippet:
javascript
(function execute(inputs, outputs) {
var gr = new GlideRecord('item_option_new');
gr.addQuery('cat_item', inputs.sys_id);
gr.addQuery('variable_set', inputs.variable_set_name);
gr.query();
if (gr.next()) {
outputs.choice = gr.choice;
} else {
outputs.choice = 'None';
}
})(inputs, outputs);
6. Once you have added the logic, you can save the action.
7. Now, you can use this custom action in your flow. When you add an action in your flow, you can select this custom action from the list.
Please note that the above code is a sample and might need to be adjusted based on your exact requirements. Also, make sure to test the custom action thoroughly before using it in production.
