How To Fix WS637 - &1: Missing reference to currency field/unit field

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 637

• Message text: &1: Missing reference to currency field/unit field

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS637 - &1: Missing reference to currency field/unit field ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WS637 &1: Missing reference to currency field/unit field
  
  Cause:
  This error occurs when a currency or quantity field in a structure or table is defined without specifying the corresponding reference field for currency or unit of measure. In SAP, fields that represent amounts or quantities must be linked to their respective currency or unit fields to ensure correct interpretation and processing.
  
  For currency fields (type CURR), SAP requires a reference to a currency key field (type WAERS).
  For quantity fields (type QUAN), SAP requires a reference to a unit of measure field (type UNIT).
  
  If this reference is missing or incorrectly defined, the system raises the WS637 error.
  
  When does it occur?
  
  During data dictionary (DDIC) object creation or modification (e.g., tables, structures, views).
  When defining fields of type CURR or QUAN without specifying the currency or unit reference fields.
  When generating or activating dictionary objects.
  Sometimes during runtime if the metadata is inconsistent.
  
  
  Solution:
  
  Check the field definitions in the dictionary object (table, structure, etc.) where the error occurs.
  For every field of type:
  
  CURR (currency amount), ensure the Currency field is specified in the "Currency field" property.
  QUAN (quantity), ensure the Unit field is specified in the "Unit field" property.
  
  
  The reference field must be part of the same structure or table.
  If the reference field does not exist, create it (e.g., a field of type WAERS for currency or UNIT for unit of measure).
  Save and activate the object again.
  
  
  Example:
  Suppose you have a structure with a field:
  
  PRICE of type CURR (currency amount)
  You must have a field like CURRENCY of type WAERS (currency key)
  In the field PRICE definition, you must specify CURRENCY as the currency reference field.
  
  
  Additional Information:
  
  This is a standard SAP data dictionary consistency check.
  Proper currency and unit references are essential for correct currency conversion, display, and calculations.
  The error message text &1 will be replaced by the field name missing the reference.
  This error helps prevent inconsistent or ambiguous data definitions.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Error
  WS637 &1: Missing reference to currency/unit field
  
  
  Cause
  Currency or quantity field lacks reference to currency/unit field
  
  
  Solution
  Define the currency or unit reference field in the data dictionary object
  
  
  Where
  Data Dictionary (DDIC) object definitions (tables, structures)
  
  
  Impact
  Prevents activation or runtime errors related to currency/unit handling
  
  
  
  
  If you provide the exact object or context where this error occurs, I can help you with a more specific solution.