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

# Set up a Line Item

> Choose a Line Item type and goal, then enter its period, budget, and targeting.

A Line Item manages the conditions for an individual delivery within an Order. The Order sets the overall budget and period; each Line Item sets a type-specific goal, period, budget or target value, and targeting. This guide uses `Promotion banner` in `Spring promotion` for `Brand A` as its example.

## Before you start

* Confirm that `Spring promotion` is active. A new Order is a draft; select **Activate** on its detail page before adding a Line Item.
* Choose the Line Item's start and end times within the Order period.
* Prepare the goal, budget or target values, and targeting conditions for the ad type.
* If you are signed in as an advertiser, you can work only with your own Orders and Line Items.

## Create a Line Item

**1. Add a Line Item from the Order**

Open `Spring promotion` from **Orders**, then select **Add Line Item**. The advertiser is fixed to the Order's advertiser.

**2. Ad type**

Choose the ad type that fits the delivery terms. Types marked **Coming soon** cannot be selected. The following steps differ by type. See [Choose an ad type](https://docs.aiderx.io/guides/for-advertisers/en/ad-types.md) for selection criteria.

**3. Goal and Strategy**

Choose the impression strategy. Standard offers priorities 6, 8, and 10, plus **Target Volume** or **Maximize Volume**; with **Target Volume**, enter the target value. Sponsorship and House also take the name and flight dates in this step.

**4. Delivery Settings**

Enter `Promotion banner` as the name and add a description if needed. Set the flight dates within the Order period, and set **Budget** and the **Delivery Interval** if required. The maximum available budget shown under the field is the advertiser account balance. When you save, the budget is checked against the Order's remaining budget. The amount you assign to the Line Item is subtracted from the Order budget.

**5. Targeting and create**

Select the required targeting conditions. Review the advertiser, type, goal, period, and budget or target values in the **Creation Summary**, then select **Create Line Item**.

Network and Backfill have only the **Delivery Settings** step after **Ad type**. Sponsorship and House go from **Goal and Strategy** to **Targeting**.

The form varies by type. A budget is not required for every type; some use type-specific target values instead. Follow required markers and validation messages in the form.

![Ad type step of Create Line Item](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-create.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=3931983c2fe626adcfaa2c59de97fd78)

![Goal and Strategy step of Create Line Item](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-step2.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=b4ffe54ba7f32880f2ef3162e40446a7)

![Delivery Settings step of Create Line Item](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-step3.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=3d7e3b28704654972e59faf34cce0cee)

![Targeting step of Create Line Item](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-step4.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=21a2cf73eaf1c7ae7b5cf55c6976ea9d)

## Verify the result

After saving, review the name, type, goal, period, and budget or target values on the Line Item detail page. A newly created Line Item is **Draft**. A draft item cannot be used for an inventory assignment. Select **Activate** on its detail page to move it to **Ready**, then link creatives.

Activating a Line Item does not start delivery by itself. Register a creative, link it to the item, then assign an AdUnit or Placement and complete approval and delivery setup. See [Register and link creatives](https://docs.aiderx.io/guides/for-advertisers/en/creative-types.md) and [Request an inventory assignment](https://docs.aiderx.io/guides/for-advertisers/en/allocation-request.md).

![Line item detail page](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-detail.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=5f53379b20f72c8e502f625ac9c63af0)

## Check the delivery forecast

The **Forecast** tab on the Line Item detail page shows whether the Line Item can reach its goal in the remaining period. It is based on estimated inventory from AdUnits covered by published Allocations, including AdUnits in an allocated Placement.

* **Inventory Forecast:** Of the estimated remaining inventory, shows **My allocation** for this Line Item, **Competitor reserved** by other Line Items, and **Unallocated** volume.
* **Delivery:** Against the **Target Volume**, shows impressions **Served** so far, **Forecasted** additional delivery, and volume that is **Unreachable** within the period.
* **Goal Pacing:** Compares goal progress with the time elapsed and shows **On Track**, **Caution**, **Delayed**, or **Underdelivery Expected**.

**Delivery** and **Goal Pacing** appear only for Line Items whose goal is **Impression** with the **Target Volume** strategy. Other Line Items show **Inventory Forecast** only. If you see **Delayed** or **Underdelivery Expected**, check whether the period, priority, assigned targets, or targeting conditions narrow the available volume too much.

![Forecast tab on the Line Item detail page](https://mintcdn.com/aiderx/PhozVR5g7G_8N2UG/images/guides/en/line-item-forecast.png?fit=max\&auto=format\&n=PhozVR5g7G_8N2UG\&q=85\&s=bbe8c89df0d238c8b634585d20039b31)

## Check which values can be edited

Use **Edit** on the detail page to change values the form allows. You cannot change the ad type after creation. Some type-specific settings, such as Standard priority, may have a separate control in the edit form. A **Preparing** or **Delivering** Line Item cannot change its start time or shorten its end time. The end time cannot exceed the Order end time. If a date field is disabled or a save fails, review the current Order and Line Item status and the message in the form.

Before changing a budget, check the Order's available limit. Before changing targeting, confirm with the operator that the selected conditions match the ad request data. Compare the detail summary before and after saving.

## Troubleshoot

| Issue | What to check |
| - | - |
| **Add Line Item** shows an activation notice | The Order is a draft. Select **Activate** on its detail page. If the button is missing, the Order is archived or your account lacks permission. |
| A type cannot be selected | Types marked **Coming soon** cannot be created yet. |
| Period validation fails | Confirm the start is before the end and both dates are within the Order period. |
| Budget validation fails | Check the Order's available budget and your entry. Some types do not have a budget field. |
| The item is not delivering after creation | Check the item status, creative and link status and schedule, inventory assignment, and delivery status separately. |

## Next step

See [Status changes and ending delivery](https://docs.aiderx.io/guides/for-advertisers/en/lifecycle.md) for activation, ending, and archive steps, then [register and link a creative](https://docs.aiderx.io/guides/for-advertisers/en/creative-types.md).


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