Overview
Add sub-items to create item groups on estimates and invoices in the Field Mobile App. This allows you to bundle services into a single line, increasing the scope of work without giving the customer visibility into material prices or hourly rates.
Who uses this feature
Technicians
Applies to all business types
Feature configuration
The Field Mobile App is optimized for iOS, iPadOS, and Android phones and tablets. For more, see System requirements and mobile app information.
If you're using the Field Mobile App and need support, please contact Technical Support (through the office) or reach out directly to support@servicetitan.com.
Things to know
In Commercial terminology, jobs are referred to as work orders.
The names of certain screens, tabs, and so on may be different based on your selection in Menu
> Settings. For more, see Show Residential or Commercial terms in the ServiceTitan Field Mobile App.
Use cases
You sell a water heater installation but you also need to charge the customer for additional parts to complete the job and to dispose of the previous water heater.
Add sub-items while adding a new item to an estimate or invoice in the Field Mobile App
Open your job (Residential) or Work Order (Commercial) and tap the tab you need:
Estimates
orInvoice (Residential) or Work Order (Commercial)
For estimates, tap + Add Items on the estimate.
For invoices, tap Add or View in the Invoice/Work Order Items section.
Tap Add Items and use the pricebook to find, open, and Add the item then tap the item to open it.
Tap + Sub-Items.

Use the pricebook to find and open the item you want to add as a sub-item then tap Add.
Tap Create Item Group > Add then select Add to Estimates or Add to Invoice (Residential) or Add to Work Order (Commercial).
Add sub-items to an existing item on an estimate or invoice in the Field Mobile App
Open your job (Residential) or Work Order (Commercial) and tap the tab you need:
Estimates
orInvoice (Residential) or Work Order (Commercial)
For estimates:
Open the estimate.
Tap Edit in the Items section.
Tap the item to open it.
For invoices:
Tap View in the Invoice/Work Order Items section.
Tap the item to open it.
Use the pricebook to find and open the item you want to add as a sub-item then tap Add.
Tap Create Item Group > Update.
Edit item groups in the Field Mobile App
Open your job (Residential) or Work Order (Commercial) and tap the tab you need:
Estimates
orInvoice (Residential) or Work Order (Commercial)
For estimates:
Open the estimate.
Tap Edit in the Items section.
For invoices:
Tap View in the Invoice/Work Order Items section.
Make the necessary changes then tap Save.
Tip: You can edit the item group name and description by tapping Edit
under Item Groups. 