Tracelink University

 ## Breadcrumb

1. [Home](/)
2. [Resources](/resources/resource-center)
3. [TraceLink University](/resources/tracelink-university)
 
  

 

 

# CSOS validated purchase order transactions

 

 

 

 

 

 

 

 

- [Download PDF](/node/627501/pdf)
- [Share](#)
    - [ LinkedIn ](https://www.linkedin.com/shareArticle?mini=true&url=https://www.tracelink.com/resources/tracelink-university/csos-validated-purchase-order-transactions&title=CSOS validated purchase order transactions&summary=A Controlled substance ordering system (CSOS) Validated Purchase Order is the official, DEA-approved version of an E222 Purchase order for controlled substances without the digital signature. &source=TraceLink "LinkedIn")
    - [ Facebook ](https://www.facebook.com/share.php?u=https://www.tracelink.com/resources/tracelink-university/csos-validated-purchase-order-transactions&t=CSOS validated purchase order transactions "Facebook")
    - [ Mail ](mailto:?subject=CSOS validated purchase order transactions+|+TraceLink&body=https://www.tracelink.com/resources/tracelink-university/csos-validated-purchase-order-transactions "Mail")
    - [ Twitter ](https://twitter.com/intent/tweet?text=CSOS validated purchase order transactions https://www.tracelink.com/resources/tracelink-university/csos-validated-purchase-order-transactions&via=TraceLink "Twitter")
 
 

 

 

 

 

#### Table of contents

 

 

 

A Controlled substance ordering system (CSOS) Validated Purchase Order is the official, DEA-approved version of an E222 Purchase order for controlled substances without the digital signature. CSOS validated purchase order confirms the order for Schedule II controlled substances that has passed all required regulatory checks and is legally cleared for fulfillment. Generated by the supplier on behalf of the customer who submitted the E222 PO after successful DEA validation, CSOS Validated PO serves as the trigger for the next steps in the supply chain, such as inventory allocation, shipment preparation, and billing. A validated PO retains all original order details, including the purchase order number, buyer DEA number, item list, quantities, and shipping information, ensuring complete traceability and compliance.

The purchase and handling of Schedule II controlled substances are subject to stringent requirements. A CSOS Validated Purchase Order confirms that an order has successfully passed all compliance checks, verifying its authenticity and authorization. This validation safeguards the integrity of the controlled substance supply chain and helps prevent delays caused by incomplete or invalid documentation.



 

 

 

 

#### Table of contents

 

 

 

 

 

 



 

##### Related Content

 

 [ ![Related content](https://www.tracelink.com/sites/default/files/2024-09/cloud.svg) ](/resources/tracelink-university/forecast-plan-idoc) 

#####  Forecast plan (IDoc) 

 Forecasting APIs allow companies to exchange data about anticipated product demand and supply availability with upstream supply chain Partners without giving these Partners access to their serialization system of record. 

 

 [View More](/resources/tracelink-university/forecast-plan-idoc) 

 

 [ ![Related content](https://www.tracelink.com/sites/default/files/2024-09/cloud.svg) ](/resources/tracelink-university/forecast-plan-x12) 

#####  Forecast plan (X12) 

 Forecasting APIs allow companies to exchange data about anticipated product demand and supply availability with upstream supply chain Partners without giving these Partners access to their serialization system of record. 

 

 [View More](/resources/tracelink-university/forecast-plan-x12) 

 

 [ ![Related content](https://www.tracelink.com/sites/default/files/2024-09/cloud.svg) ](/resources/tracelink-university/forecast-plan-response-idoc) 

#####  Forecast plan response (IDoc) 

 Forecasting APIs allow companies to exchange data about anticipated product demand and supply availability with downstream supply chain Partners without giving these Partners access to their serialization system of record. 

 

 [View More](/resources/tracelink-university/forecast-plan-response-idoc)