# About special processing properties for a shipment  
In certain cases, you may need special handling for a given shipment. In that case, there are several options you can specify as part of the Shipment entity, or when using the [Carrier and Method Selection & Shipment Label API](https://docs.shipium.com/docs/carrier-and-method-selection-and-shipment-label-api) single call.

This document provides instructions for designating a shipment for:

- Required delivery signature
- Saturday delivery request
- Type of transportation

For guidance on specifying shipment contents as a special designation, see the following documents:

- [Bound Printed Matter](https://docs.shipium.com/docs/bound-printed-matter-support)
- [Hazardous Materials](https://docs.shipium.com/docs/hazardous-materials-support)
- [Hundredweight](https://docs.shipium.com/docs/hundredweight-support)
- [Perishable Items](https://docs.shipium.com/docs/perishable-item-support)

# Special processing and accessorial options  
This table shows the optional special processing elements that can be included as part of the element.

| Request field              | Details                                                                                                                                                                                                                                                                                                                                                                           |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `deliverySignatureOption`  | **Type:** String (enumeration)  
**Values:**`none` (default), `signature`, `resident_signature`, `adult_signature`, `adult_resident_signature`  
**Description:** If you pass an optional `deliverySignatureOption`, its value is used to select only ship methods that support the specified delivery confirmation type. If you do not need a resident specifically, use `signature`, which is the most broadly supported across carriers.  
**Note:** Carrier support for individual values may vary; refer to your carrier's specific configuration or confirm support with your Shipium contact.  |
| `saturdayDelivery`         | **Type:** Boolean  
**Values:**`true` or `false`  
**Description:** This is a strict filter for Saturday-only services. For flexible [weekend delivery](https://docs.shipium.com/docs/weekend-and-holiday-delivery), consider `desiredDeliveryDate`. Some carrier service methods deliver on Saturday for free, whereas some charge an additional fee for Saturday delivery. If you do not want to incur extra charges for Saturday delivery, this flag should be set to `false`, which is the default setting. Service methods that deliver for free on Saturday will still be considered during carrier selection. However, if you are willing to incur more cost and upgrade the carrier service method to meet a Saturday delivery, you can set this flag to `true`. If this flag is `true`, only carrier service methods that can deliver on Saturday will be considered. All other service methods will be filtered out of carrier selection.  
**Note:** Setting this flag to `true` does not guarantee a Saturday delivery, which is dependent upon the carrier. If you have included a [desired delivery date](https://docs.shipium.com/docs/desired-and-exact-delivery-dates) (DDD) of Saturday or Sunday, setting this flag to `false` does not impact the DDD for a Saturday delivery.  |
| `transportationType`       | **Type:** String (enumeration)  
**Values:**`any` (default), `air`, `ground`  
**Description:** By passing a `transportationType`, you can limit the set of possible methods for this shipment.  
**Note:** Specifying `transportationType` may increase the shipment cost. Use sparingly, if at all.  |

## Saturday delivery  
Saturday delivery can be requested using two different approaches, each with distinct behavior:

**Option 1. Saturday Delivery Flag**  
```json
"saturdayDelivery": true
```
- **When to use.** You require delivery specifically on Saturday.
- **Behavior.** Returns only services that explicitly support Saturday delivery to your destination
- **Result.** May return fewer options, but guarantees Saturday-capable services

**Option 2: Desired Delivery Date**  
```json
"desiredDeliveryDate": "2024-03-16"  // A Saturday
```
- **When to use.** You want delivery by Saturday (weekend timeline).
- **Behavior.** Returns services that can deliver on or before the specified Saturday
- **Result.** More shipping options, including Friday delivery that meets your timeline

## Resources  
Your Shipium team member is available to help along the way. However, you might find these resources helpful:

- [Terms and Definitions](https://docs.shipium.com/docs/common-terms)
- [Troubleshooting Guide](https://docs.shipium.com/docs/troubleshooting-guide)
- [Contact Shipium Support](https://docs.shipium.com/docs/contacting-shipium-support)

Updated about 2 months ago