How To Fix /SAPAPO/ATP173 - Reassignment of confirmations produces no confirmation

/SAPAPO/ATP173 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 173

• Message text: Reassignment of confirmations produces no confirmation

Self-Explanatory Message

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/SAPAPO/ATP173 - Details

• The SAP error message /SAPAPO/ATP173 indicates that there is an issue with the reassignment of confirmations in the Advanced Planning and Optimization (APO) module, specifically in the Available-to-Promise (ATP) functionality. This error typically arises when the system is unable to find a valid confirmation for a given order or request after attempting to reassign it.
  Causes:
  
  Insufficient Stock: There may not be enough stock available to fulfill the reassignment request.
  Incorrect Configuration: The configuration settings for ATP checks or the product master data may not be set up correctly.
  Order Status: The status of the order or the confirmation may not allow for reassignment.
  Time Constraints: The requested delivery date may be outside the available time frame for the stock.
  Product Allocation: There may be product allocation settings that restrict the availability of stock for certain orders.
  Planning Version: The planning version being used may not have the necessary data or stock levels.
  
  Solutions:
  
  Check Stock Levels: Verify that