What is 'requirement tracking number' in SAP MM-PUR - Purchasing?

requirement tracking number - Overview

• Component: MM-PUR

• Component Name: Purchasing

• Description: A number that enables you to monitor the procurement of required materials or services. This number can relate to a requirement notification that was not created in the system.

requirement tracking number - Details

• 
  Key Concepts: 
  A requirement tracking number (RTN) is a unique identifier assigned to a purchase requisition in the SAP MM-PUR Purchasing component. It is used to track the progress of the requisition and to ensure that all necessary steps are taken in order to complete the purchase. 
  
  How to use it: 
  The RTN is generated when a purchase requisition is created in SAP. It can be found in the header of the purchase requisition document. The RTN should be included in all communication related to the purchase requisition, such as emails, phone calls, and other documents. 
  
  Tips & Tricks: 
  When creating a purchase requisition, make sure to include the RTN in all communication related to it. This will help ensure that all necessary steps are taken in order to complete the purchase. 
  
  Related Information: 
  The RTN is also used to track the progress of a purchase order. It can be found in the header of the purchase order document. The RTN should be included in all communication related to the purchase order, such as emails, phone calls, and other documents.