How To Fix WT123 - Requirement group &1 does not exist

WT123 - Overview

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 123

• Message text: Requirement group &1 does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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WT123 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WT123 Requirement group &1 does not exist
  
  
  Cause:
  This error occurs when the system tries to reference a requirement group (also called a requirement type or requirement group key) that has not been defined or maintained in the system. Requirement groups are used in SAP to control the availability check and requirements determination in production planning and sales order processing.
  In particular, this error typically arises in the context of:
  
  Availability check (ATP check)
  Requirements grouping in MRP or sales order processing
  Configuration of requirement types in Customizing
  
  The system is looking for a requirement group with the key specified (represented by &1 in the message), but it cannot find it in the configuration tables.
  
  Where is the Requirement Group Maintained?
  Requirement groups are maintained in the SAP Customizing under:
  
  SPRO ? Production ? Material Requirements Planning ? Check Availability ? Define Requirement Groups
  
  or
  
  SPRO ? Sales and Distribution ?