What is reference type in SAP SCM-APO-MD - Master Data?

SAP Term: reference type

• Component: SCM-APO-MD

• Component Name: Master Data

• Description: Type of relationship between two activities. The reference type defines the behavior of the successor activity in terms of start and end. The following reference types exist: End-start relationship: The most simple relationship between two activities. Activity 2 cannot begin before the end of activity 1. A pause between end and start is not necessary. There can be a minimum/maximum time variance between end and start. Start-start relationship: The start of one activity is dependent on the start of another activity. These two activities can start at exactly the same time, or with a minimum/maximum time variance. End-end relationship: The end of one activity is dependent on the end of another activity. The end of both activities can be at exactly the same time, or with a minimum/maximum time variance. Start-end relationship: Activity 1 can only be ended once activity 2 has started. For shiftwork, this means that the foreman activity 1 can only end his shift once the next foreman acti

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• Key Concepts: 
  Reference types are used in SAP SCM-APO-MD Master Data to define the type of reference that is used in the system. This can be used to differentiate between different types of references, such as customer references, vendor references, or product references. 
  
  How to use it: 
  Reference types are used to define the type of reference that is used in the system. This can be done by creating a new reference type in the system and assigning it to the appropriate reference. The reference type can then be used to differentiate between different types of references. 
  
  Tips & Tricks: 
  When creating a new reference type, it is important to ensure that the name of the reference type is descriptive and easy to understand. This will help users quickly identify which type of reference they are dealing with. 
  
  Related Information: 
  Reference types are closely related to other SAP SCM-APO-MD Master Data concepts such as master data objects and attributes. Understanding how these concepts work together will help users better understand how reference types are used in the system.