# Regenerate

If you are an <a href="https://knowledgecenter.zuora.com/Zuora_Billing/Enable_Order_to_Revenue" target="_blank">Order to Revenue</a> user, you can use the Regenerate operations to regenerate transactions objects.     


## Regenerate booking transactions

 - [POST /v1/uno-regenerate/booking-transaction](https://developer.zuora.com/v1-api-reference/api/regenerate/post_regeneratebookingtransaction.md): Use this operation to generate booking transactions. This call is useful in the following two use cases:
* During customer onboarding, there is a common scenario when customers perform data backfill or data fixes. To synchronize these changes from Billing to Revenue, use this API operation to regenerate booking transaction objects.
* Customers choose to experiment with their use cases in the Sandbox environment before implementing them in the Production environment. During this experimentation phase, customers not only interact with data but also use this API operation to regenerate booking transaction objects.

## Regenerate billing transactions

 - [POST /v1/uno-regenerate/billing-transaction](https://developer.zuora.com/v1-api-reference/api/regenerate/post_regeneratebillingtransaction.md): Use this operation to generate billing transactions. This call is useful in the following two use cases: 
* During customer onboarding, there is a common scenario when customers perform data backfill or data fixes. To synchronize these changes from Billing to Revenue, use this API operation to regenerate billing transaction objects.
* Customers choose to experiment with their use cases in the Sandbox environment before implementing them in the Production environment. During this experimentation phase, customers not only interact with data but also use this API operation to regenerate transaction objects.

## Regenerate revenue recognition events transactions for Delivery Schedule

 - [POST /v1/uno-regenerate/rev-rec-events](https://developer.zuora.com/v1-api-reference/api/regenerate/post_createrevrecevents.md): Use this operation to generate Delivery Schedule based revenue recognition events transactions.

## Regenerate revenue recognition events transactions for Daily Consumption

 - [POST /v1/uno-regenerate/rev-rec-events/daily-consumption](https://developer.zuora.com/v1-api-reference/api/regenerate/post_generaterevreceventsfordailyconsumption.md): Use this operation to generate Daily Consumption based revenue recognition events transactions when the Prepaid with Drawdown feature is enabled.