How To Fix W0155 - External number range '&' does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 155

• Message text: External number range '&' does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W0155 - External number range '&' does not exist ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W0155 - External number range '&' does not exist
  
  Cause:
  This warning message occurs when an external number range is expected or specified in a transaction or program, but the system cannot find or identify the external number range with the given identifier (represented by '&' as a placeholder for the actual number range object).
  In SAP, number ranges are used to assign unique document or object numbers. Number ranges can be internal (system-assigned) or external (user-assigned). When an external number range is specified but not defined or missing in the system, this error appears.
  Common causes include:
  
  The number range object or interval has not been created or maintained in the system.
  The number range object exists but does not have an external number range interval defined.
  The program or transaction is trying to use an external number range that is not assigned or activated.
  Custom developments or interfaces are calling number ranges that are not properly configured.
  
  
  Solution:
  
  
  Check Number Range Object:
  
  Go to transaction SNRO (Number Range Objects).
  Enter the relevant number range object name (you may need to identify this from the context or program).
  Verify if the number range object exists.
  
  
  
  Maintain Number Range Intervals:
  
  In SNRO, select the number range object and click on Intervals.
  Check if an external number range interval is defined.
  If not, create a new interval and specify the number range type as External.
  Assign the appropriate number range interval (from number, to number).
  
  
  
  Check Transaction or Program Settings:
  
  Verify if the transaction or program is correctly configured to use the number range object.
  Ensure that the external number range is activated and assigned.
  
  
  
  Custom Development:
  
  If this error occurs in a custom program, check the code where number ranges are called.
  Make sure the number range object and interval exist and are correctly referenced.
  
  
  
  Transport and System Consistency:
  
  If the number range object was recently created or changed, ensure it has been transported correctly to the system where the error occurs.
  
  
  
  
  Related Information:
  
  Transaction SNRO: Used to maintain number range objects and intervals.
  Transaction SNUM: Used to maintain number ranges for certain applications.
  Number ranges are critical for document numbering in modules like FI, MM, SD, etc.
  External number ranges require users to input the number manually or via an interface.
  Internal number ranges are assigned automatically by the system.
  Always ensure number ranges do not overlap and are sufficient for business volume.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  W0155 - External number range '&' does not exist
  
  
  Cause
  External number range not defined or missing
  
  
  Solution
  Define and maintain external number range interval in SNRO
  
  
  Transaction
  SNRO (Number Range Objects maintenance)
  
  
  Notes
  Check custom code and transport consistency
  
  
  
  
  If you provide the specific number range object or module context, I can help with more precise instructions.