How To Fix NR661 - From & must differ from To &

SAP Error Message - Details

• Message type: E = Error

• Message class: NR - Number ranges

• Message number: 661

• Message text: From & must differ from To &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NR661 - From & must differ from To & ?

  The SAP error message NR661 ("From & must differ from To &") typically occurs in the context of number range management. This error indicates that the "From" number and "To" number in a number range interval must be different. In other words, you cannot have a number range where the starting number is the same as the ending number.
  Cause:
  
  Incorrect Number Range Definition: When defining a number range interval, the user may have mistakenly set the same value for both the "From" and "To" fields.
  Data Entry Error: During the creation or modification of a number range, the user may have entered the same number in both fields.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object that is causing the error.
  Check the intervals defined for that number range object.
  Ensure that the "From" number is less than the "To" number. If they are the same, change one of the values to create a valid range.
  
  
  
  Modify the Number Range:
  
  If you find that the "From" and "To" values are the same, modify one of them to ensure they are different. For example, if "From" is 1000, you might set "To" to 1001.
  
  
  
  Save Changes: After making the necessary adjustments, save the changes and try the operation again that triggered the error.
  
  
  Related Information:
  
  Number Range Objects: In SAP, number ranges are used to generate unique identifiers for various objects (like documents, invoices, etc.). Each object can have its own number range defined.
  Transaction Codes: Common transaction codes related to number range management include:
  
  SNRO: To manage number range objects.
  SNUM: To display number ranges.
  
  
  Authorization: Ensure that you have the necessary authorizations to modify number ranges, as this can be restricted based on user roles.
  
  If the issue persists after checking and modifying the number range, it may be helpful to consult with your SAP Basis or functional team for further assistance.