---
title: Setup time and material invoicing
description: "#### CONSIDERATIONS FOR TIME AND MATERIAL BILLING - Projects that are invoiced as time and materials projects **require both the AP Config and Billing Config** fields to be populated on the project. - The time and materials invoice job will…"
url: "https://arrowpsa.com/docs/setup-time-and-materials-billing/"
updated: "2024-09-25"
category: "Configuring Arrow PSA / Configure Invoicing & Billing"
---

# Setup time and material invoicing

#### CONSIDERATIONS FOR TIME AND MATERIAL BILLING

- Projects that are invoiced as time and materials projects **require both the AP Config and Billing Config** fields to be populated on the project.
- The time and materials invoice job will pick up and invoice all time entries that have not been invoiced in the **past 60 days**.
- The **Invoice Date** that is set on the invoice for time and materials billing is automatically set to the date before the time and materials invoice job runs.
- If your organization invoices your clients **multiple times per month** you will need to schedule multiple time and material billing jobs that will run on different days of the month.

#### SCHEDULE A TIME AND MATERIAL BILLING JOB

1. From the Setup menu navigate to **Custom Code > Apex Classes**.
2. Click the **Schedule Apex** button.

   ![](https://arrowpsa.com/wp-content/uploads/2020/10/image-42.png)
3. Create a batch job that will run the Time and Material Invoicing.
   - Enter “T&M Invoice Job {Day}” as the **Job Name** where {Day} is the day of the month that the job is scheduled for.
   - Select “ArrowScheduleTMInvoices” as the **Apex Class**.
   - Set the schedule for the frequency of the job to Monthly and select the day of the month that the invoices should be generated.
   - Set the **Start Date **and **End Date** as today and a date far into the future, relatively.
   - Set a **Start Time** for when the job should run to produce the invoices.

     ![](https://arrowpsa.com/wp-content/uploads/2020/10/image-4.png)
4. Click **Save**.

---

**See Also**
[Setup template invoicing](https://arrowpsa.com/docs/setup-template-billing/)
[Setup retainer invoicing](https://arrowpsa.com/docs/setup-retainer-billing/)
[Setup billing event invoicing](https://arrowpsa.com/docs/setup-billing-events/)
[Setup manual invoicing](https://arrowpsa.com/docs/setup-manual-billing/)

**Supporting Salesforce Docs**
[Schedule apex jobs](https://help.salesforce.com/articleView?id=code_schedule_batch_apex.htm&type=5)