> ## Documentation Index
> Fetch the complete documentation index at: https://zenskar.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Contract & Invoices

## 1. Concepts

### What this tab groups together

**Settings > Contract & Invoices** gathers several independent settings under one tab, grouped only because each relates to contract or invoice lifecycle automation. Each card has its own save action and its own effect; they do not share data with each other.

### Invoice Numbering Settings

Controls the format of invoice numbers: a prefix, the next sequence number, and digit length, along with the level at which numbering resets, organization-wide, per business entity, or per customer.

### Invoice Date Configuration

Controls how an invoice's date is calculated relative to a reference point. This card is documented separately. See [Invoice date configuration](/docs/20260301/product-modules/settings/invoice-date-configuration/concepts).

### Monitoring Settings

A single toggle that enables managing customer segments and customizing billing and communication for different groups of customers.

<Note>
  Organizations on an earlier contract experience also see Contract Renewal, Contract Creation, and Invoice Settings cards here. Those are not part of the Contracts V3 experience, so they are not covered on this version of the docs.
</Note>

***

## 2. How-to guides

### Set the invoice numbering format

1. Go to **Settings > Contract & Invoices**.
2. Under **Invoice Numbering Settings**, set the prefix, next sequence number, and digit length.
3. Choose the level at which numbering applies: organization, business entity, or customer.
4. Save.

### Enable monitoring

1. Go to **Settings > Contract & Invoices**.
2. Under **Monitoring Settings**, turn on **Monitoring**.
3. Save.

### Troubleshooting

* **Contract Renewal, Contract Creation, or Invoice Settings cards are missing**: these cards are not part of the Contracts V3 experience.

***

## 3. Reference

### Location

**Settings > Contract & Invoices**.

### Invoice Numbering Settings fields

| Field                | Notes                             |
| -------------------- | --------------------------------- |
| Prefix               |                                   |
| Next sequence number |                                   |
| Digit length         |                                   |
| Numbering scheme     | Organization, Entity, or Customer |

### Monitoring Settings fields

| Field      | Notes  |
| ---------- | ------ |
| Monitoring | Toggle |

### Scope

Organization-wide for Monitoring Settings and Invoice Date Configuration. Invoice Numbering Settings can be scoped by the chosen numbering scheme to the organization, a business entity, or a customer.