--- title: "Add or edit inventory items on an invoice" slug: "add-or-edit-inventory-items-on-an-invoice" updated: 2026-10-15T00:45:03Z published: 2026-10-15T00:45:03Z canonical: "help.servicetitan.com/add-or-edit-inventory-items-on-an-invoice" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.servicetitan.com/llms.txt > Use this file to discover all available pages before exploring further. # Add or edit inventory items on an invoice ## Overview You can add inventory items to a job from an invoice. You can also edit inventory items on an invoice both individually and in bulk. --- ### #### Who uses this feature - Office employees and accountants #### Feature configuration - Account configuration is required to use this feature. Please contact [Technical Support](http://go.servicetitan.com/ask) for details. ## Things to know - Technicians can add items even if it drops the available inventory items quantity below zero. This allows technicians to continue working and close jobs. - Office employees can add items to an invoice, however, they can't add items to an invoice if there aren't enough inventory items available. - An office employee can add items to invoices even if it drops the quantity of items below zero if the *Enable Negative Quantity* configuration is selected in **Settings** **>** **Inventory** **>** **Configuration >** the **Inventory** tab. For more, see [Set up inventory configurations](/construction/docs/set-up-inventory-configurations). - When an equipment, material or task quantity on an invoice falls below zero in the selected inventory location, you will see an error message to update item quantity.![Image showing the error message to update item quantity.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-37zoih32.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D) - Items on the *Purchase Order*, *Receipts*, and *Return* pages are tagged as *Serialized* or *Tracked*: - **Serialized:** Serialized Inventory is enabled - **Tracked**: Inventory tracking is enabled - After an item is received, it is automatically added to an invoice with a $0 cost. ## Add an inventory item to an invoice 1. [Open the invoice](/construction/docs/use-search-in-servicetitan) you want to add an item to. 2. On the invoice record that opens, click **Add a material** or **Add equipment**. For example, click **Add a material**. The *Add a Material* page opens. > [!NOTE] > **Note:** If you add non-serialized items to invoices from estimates, ServiceTitan uses the latest average cost. 3. In the **Code** field, enter and then select the item from the dropdown field. 4. In the **Quantity** field, enter the quantity of an item that is required to be consumed. 5. From the **Inventory Location** dropdown field, select the inventory location from which the item is used.![Image showing how to add an inventory item to an invoice.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-jaj29obe.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D) 6. When you're finished, click **Save**. ## Update an inventory item on an invoice 1. [Open the invoice](/construction/docs/use-search-in-servicetitan) you want to add an item to. 2. On the invoice record that opens, select the item you want to update. 3. Click the **Edit![](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-3c8410nb.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D)**icon.![A cursor clicking the edit icon to update item on an invoice.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-cjyq8vxr.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D) 4. On the *Edit Material* page that opens, update the quantity as needed.![Updating the quantity of the items on the Edit Material screen.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-s7ndpmbg.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D) 5. When you're finished, click **Save**. ## Update items in bulk on an invoice 1. [Open the invoice](/construction/docs/use-search-in-servicetitan) that includes the items that you want to edit. 2. On the invoice record that opens, click **Bulk Item Update**.![A cursor clicking the Bulk Item Update button.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-5vkolyv4.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D)The *Bulk Item Update* page opens with the list of all items. 3. Select the items you want to update.![A cursor selecting items to update.](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/add-or-edit-inventory-items-on-an-invoice-image-attpz6fn.png?sv=2026-02-06&spr=https&st=2026-10-31T00%3A42%3A50Z&se=2026-10-31T01%3A42%3A50Z&sr=c&sp=r&sig=iXsHZw9eZTm0pEqnGB7bfpEdtZ5MNwUVrF7R0IeSoys%3D) 1. Use the premade dropdown fields to update **On Hold Date**, **Technician**, and **Inventory Location** for the selected items. 2. Make all changes on the table one item at a time. > [!NOTE] > **Note:** If you want to update the quantity of the items, you should also update the **Serial Number**. For more information, see [Edit the quantity of an item on an invoice](/construction/docs/add-or-edit-serialized-items-on-invoices#edit-the-quantity-of-an-item-on-an-invoice). ## FAQ --- ### #### Will I have double job costing if I add an item to a purchase order (PO) when the PO is fully received? No. When you add an item to a PO and the PO is fully received, items can be added to an invoice with a $0 cost. This allows you to prevent double Job Costing. For more information, see [Add or edit inventory items on an invoice](/construction/docs/add-or-edit-inventory-items-on-an-invoice). ## Want to learn more? - Visit ServiceTitan Academy and enroll in [Inventory Setup](https://servicetitan.docebosaas.com/academy/learn/courses/70/Inventory-Manager-Inventory-Setup-Explorer) - See [Add or edit serialized items on invoices](/construction/docs/add-or-edit-serialized-items-on-invoices) - See [Edit an invoice](/construction/docs/edit-an-invoice) The calculation of actual costs (labor, materials, overhead) against revenue for each job to determine true profitability. **What it does:** Shows which job types, technicians, or BUs are truly profitable after accounting for all costs, not just top-line revenue. **Also called:** Job profitability, Cost tracking **Tags:** Core [See the full glossary →](https://help.servicetitan.com/docs/glossary-overview)