Authorizing a Sale for a Product Not Yet Available {#payments-processing-basic-split-ship-one-auth-sale-intro}
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When the customer purchases a product that is not yet available, you can request an authorization and a sale. First request an authorization to ensure that funds are available. After the product becomes available, ship the product and request a sale. `Cybersource` then links the follow-on authorization to the first authorization, and then links to the capture request.

#### Figure:

Authorizing a Sale for a Product not yet Available  
![](/content/dam/documentation/cybs/en-us/topics/payments-processing/card-processing/payments/images/payments-ss-scenario-one.svg/jcr:content/renditions/original)  
**Step 1: Requesting an authorization**  
Request an authorization to ensure that funds are available before the product is available for immediate shipment. The authorization request requires no additional fields or requirements than a basic authorization.  
**Step 2: Processing a sale**  
When the product becomes available, ship the product and request a sale. The follow-on authorization requires you to submit a sale request that includes the requestID field in addition to the basic fields required for every sale request. The requestID field in an authorization request triggers the split-shipment functionality.  
Set the field to the value from the requestID field from the first authorization's response.  
**Field Specific to authorizing a sale for a product not yet available:**  
First Authorization Response Message: `requestID=SWVdPS5IM`  
Follow-on Authorization Request: `linkToRequest=SWVdPS5IM`  
**Step 3: `Cybersource` attempts to link the follow-on authorization request to the first authorization**

* If the value is valid, the follow-on authorization is linked to the original authorization in the `Business Center` and in reports.
* If the value is not valid, the follow-on authorization is not linked to the original authorization in the `Business Center` and in reports.

{#payments-processing-basic-split-ship-one-auth-sale-intro_ul_nvp_44z_wwb}  
**Step 4: `Cybersource` links the capture request**

* If the value for the follow-on authorization was valid, all three transactions (first authorization, follow-on authorization, capture) are linked together in the `Business Center` and in reports.
* If the value for the follow-on authorization was not valid, the second authorization and capture are linked to each other in the `Business Center` and in reports, but they are not linked to the first authorization.

{#payments-processing-basic-split-ship-one-auth-sale-intro_ul_sv2_q4z_wwb}  
See [Basic Authorization](/docs/cybs/en-us/payments/developer/ctv/so/payments/payments-processing-basic-intro/payments-processing-basic-auth-intro.md "") for information on how to process a basic authorization. See [Sale](/docs/cybs/en-us/payments/developer/ctv/so/payments/payments-processing-basic-intro/payments-processing-basic-sale-intro.md "") for information on how to process a sale.