To auto-populate the business case of an item using the contents of a variable in ServiceNow, you can use a Business Rule or a Client Script. Here's a step-by-step guide on how to do it:
1. **Create a Business Rule or Client Script:**
- Navigate to System Definition > Business Rules or System UI > Client Scripts.
- Click on New to create a new Business Rule or Client Script.
2. **Define the Business Rule or Client Script:**
- Give it a meaningful name.
- Select the table where your item resides.
- In the "When to run" section, select "before" for Business Rule or "onLoad" for Client Script.
- In the "Filter conditions" section, define the conditions under which this rule should run.
3. **Write the Script:**
- In the "Script" section, write a script to auto-populate the business case. Here's a sample script:
javascript
(function executeRule(current, previous /*null when async*/) {
// Get the value of the variable
var variableValue = current.variables.your_variable;
// Set the value of the business case
current.business_case = variableValue;
})(current, previous);
- Replace "your_variable" with the actual name of your variable.
4. **Save and Test:**
- Click on Submit to save the Business Rule or Client Script.
- Test it by creating or updating a record in the selected table.
Remember, this is a basic example. Depending on your specific requirements, you might need to modify the script. For example, if the variable is part of a variable set or if it's on a catalog item, you might need to use a different method to get its value.
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