catalog-items
$
npx mdskill add serac-labs/serac/catalog-itemsBuild ServiceNow Service Catalog items with variables, scripts, and pricing
- Streamline creation of catalog items, variables, and order guides
- Uses ServiceNow APIs and Snow-Code for development tasks
- Applies reference qualifiers and dynamic pricing rules
- Generates structured output for deployment or testing
SKILL.md
.github/skills/catalog-itemsView on GitHub ↗
---
name: catalog-items
description: Build ServiceNow Service Catalog items, variables, variable sets, catalog client scripts, record producers, and order guides with reference qualifiers and dynamic pricing.
license: Apache-2.0
compatibility: Designed for Snow-Code and ServiceNow development
metadata:
author: serac
version: "1.0.0"
category: servicenow
tools:
- snow_catalog_item_create
- snow_catalog_variable_create
- snow_query_table
- snow_find_artifact
---
# Service Catalog Development for ServiceNow
The Service Catalog allows users to request services and items through a self-service portal.
## Catalog Components
| Component | Purpose | Example |
| ---------------- | ------------------------ | --------------------- |
| **Catalog** | Container for categories | IT Service Catalog |
| **Category** | Group of items | Hardware, Software |
| **Item** | Requestable service | New Laptop Request |
| **Variable** | Form field on item | Laptop Model dropdown |
| **Variable Set** | Reusable variable group | User Details |
| **Producer** | Creates records directly | Report an Incident |
| **Order Guide** | Multi-item wizard | New Employee Setup |
## Catalog Item Structure
```
Catalog Item: Request New Laptop
├── Variables
│ ├── laptop_model (Reference: cmdb_model)
│ ├── reason (Multi-line text)
│ └── urgency (Choice: Low, Medium, High)
├── Variable Sets
│ └── Delivery Information (Address, Contact)
├── Catalog Client Scripts
│ ├── onLoad: Set defaults
│ └── onChange: Update price
├── Workflows/Flows
│ └── Laptop Approval Flow
└── Fulfillment
└── Creates Task for IT
```
## Variable Types
| Type | Use Case | Example |
| ------------------- | ------------------- | ---------------------- |
| Single Line Text | Short input | Employee ID |
| Multi Line Text | Long input | Business Justification |
| Select Box | Single choice | Priority |
| Check Box | Yes/No | Express Delivery |
| Reference | Link to table | Requested For |
| Date | Date picker | Needed By Date |
| Lookup Select Box | Filtered reference | Model by Category |
| List Collector | Multiple selections | CC Recipients |
| Container Start/End | Visual grouping | Hardware Options |
| Macro | Custom widget | Cost Calculator |
## Creating Catalog Variables
### Basic Variable
```javascript
// Via MCP
snow_create_catalog_variable({
catalog_item: "laptop_request",
name: "laptop_model",
type: "reference",
reference: "cmdb_model",
reference_qual: "category=computer",
mandatory: true,
order: 100,
})
```
### Variable with Dynamic Default
```javascript
// Variable: requested_for
// Type: Reference (sys_user)
// Default value (script):
javascript: gs.getUserID()
```
### Variable with Reference Qualifier
```javascript
// Variable: assignment_group
// Type: Reference (sys_user_group)
// Reference Qualifier:
// Simple:
active=true^type=it
// Dynamic (Script):
javascript: 'active=true^manager=' + gs.getUserID()
// Advanced (using current variables):
javascript: 'u_department=' + current.variables.department
```
## Catalog Client Scripts
### Set Defaults onLoad
```javascript
function onLoad() {
// Set default values
g_form.setValue("urgency", "low")
// Hide admin-only fields
if (!g_user.hasRole("catalog_admin")) {
g_form.setDisplay("cost_center", false)
}
// Set default date to tomorrow
var tomorrow = new GlideDateTime()
tomorrow.addDays(1)
g_form.setValue("needed_by", tomorrow.getDate().getValue())
}
```
### Dynamic Pricing onChange
```javascript
function onChange(control, oldValue, newValue, isLoading) {
if (isLoading) return
// Get price from selected model
var ga = new GlideAjax("CatalogUtils")
ga.addParam("sysparm_name", "getModelPrice")
ga.addParam("sysparm_model", newValue)
ga.getXMLAnswer(function (price) {
g_form.setValue("item_price", price)
updateTotal()
})
}
function updateTotal() {
var price = parseFloat(g_form.getValue("item_price")) || 0
var quantity = parseInt(g_form.getValue("quantity")) || 1
g_form.setValue("total_cost", (price * quantity).toFixed(2))
}
```
### Validation onSubmit
```javascript
function onSubmit() {
// Validate business justification for high-cost items
var cost = parseFloat(g_form.getValue("total_cost"))
var justification = g_form.getValue("business_justification")
if (cost > 1000 && !justification) {
g_form.showFieldMsg("business_justification", "Required for items over $1000", "error")
return false
}
// Validate date is in future
var neededBy = g_form.getValue("needed_by")
var today = new GlideDateTime().getDate().getValue()
if (neededBy < today) {
g_form.showFieldMsg("needed_by", "Date must be in the future", "error")
return false
}
return true
}
```
## Variable Sets
### Creating Reusable Variable Sets
```
Variable Set: User Contact Information
├── contact_name (Single Line Text)
├── contact_email (Email)
├── contact_phone (Single Line Text)
└── preferred_contact (Choice: Email, Phone, Either)
Use in multiple catalog items:
- New Laptop Request
- Software Installation
- Network Access Request
```
### Accessing Variable Set Values
```javascript
// In workflow or script
var ritm = current // sc_req_item
// Access variable from variable set
var contactEmail = ritm.variables.contact_email
var preferredContact = ritm.variables.preferred_contact
```
## Catalog Workflows/Flows
### Approval Pattern
```
Flow Trigger: sc_req_item created
├── If: Total cost > $5000
│ └── Request Approval: Department Manager
│ └── If: Rejected
│ └── Update: RITM state = Closed Incomplete
├── If: Total cost > $25000
│ └── Request Approval: VP
├── Create: Catalog Task for Fulfillment
└── Wait: Task completion
```
### Fulfillment Script
```javascript
// In catalog item's "Execution Plan" or workflow
var ritm = current // sc_req_item
// Create an incident from catalog request
var inc = new GlideRecord("incident")
inc.initialize()
inc.setValue("short_description", ritm.short_description)
inc.setValue("description", ritm.description)
inc.setValue("caller_id", ritm.request.requested_for)
inc.setValue("category", ritm.variables.category)
inc.setValue("priority", ritm.variables.urgency)
inc.insert()
// Link incident to request
ritm.setValue("u_fulfillment_record", inc.getUniqueValue())
ritm.update()
```
## Record Producers
### Creating Incidents via Catalog
```javascript
// Record Producer: Report an Issue
// Table: incident
// Script:
// Map variables to incident fields
current.short_description = producer.short_description
current.description = producer.description
current.caller_id = gs.getUserID()
current.category = producer.category
current.subcategory = producer.subcategory
current.priority = producer.urgency == "urgent" ? "2" : "3"
// Set assignment based on category
if (producer.category == "network") {
current.assignment_group.setDisplayValue("Network Support")
} else {
current.assignment_group.setDisplayValue("Service Desk")
}
```
## Order Guides
### Multi-Step Request Wizard
```
Order Guide: New Employee Onboarding
├── Step 1: Employee Information
│ └── Variable Set: Employee Details
├── Step 2: Hardware Selection
│ ├── Catalog Item: Laptop
│ ├── Catalog Item: Monitor
│ └── Catalog Item: Peripherals
├── Step 3: Software Requests
│ └── Rule: Show software based on department
├── Step 4: Access Requests
│ └── Cascade Variable: Copy employee info
└── Submit: Creates multiple RITMs
```
### Order Guide Rule
```javascript
// Rule: Show software items based on department
function rule(item, guide_variables) {
var dept = guide_variables.department
// Show engineering software only for Engineering
if (item.name == "Engineering Software Suite") {
return dept == "engineering"
}
// Show finance software only for Finance
if (item.name == "Financial Tools") {
return dept == "finance"
}
return true // Show all other items
}
```
## Pricing & Approvals
### Dynamic Pricing
```javascript
// Catalog Item Script (Pricing)
// Runs when item is added to cart
var basePrice = parseFloat(current.price) || 0
var quantity = parseInt(current.variables.quantity) || 1
var expedited = current.variables.expedited == "true"
var total = basePrice * quantity
if (expedited) {
total *= 1.5 // 50% rush fee
}
current.recurring_price = 0
current.price = total
```
### Approval Rules
```
Approval Definition: High-Value Purchases
Condition: total_cost > 5000
Approver: requested_for.manager
Wait for: Approval
Rejection action: Cancel request
```
## Best Practices
1. **Variable Naming** - Use descriptive, lowercase names (no spaces)
2. **Variable Sets** - Reuse common variable groups
3. **Reference Qualifiers** - Filter to relevant records only
4. **Client Scripts** - Minimize server calls (use GlideAjax sparingly)
5. **Fulfillment** - Create tasks, don't complete directly
6. **Testing** - Test as different user roles
7. **Mobile** - Test catalog items on mobile/tablet
8. **Documentation** - Add help text to variables
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