How To Fix 56306 - Assigned number is in critical range (-> percent in TNRO)

SAP Error Message - Details

• Message type: E = Error

• Message class: 56 - HR TRAVEL: Messages for Trip Costs Dialog

• Message number: 306

• Message text: Assigned number is in critical range (-> percent in TNRO)

What causes this issue?

Using the transaction 'SNRO', a critical area can be specified for each
number range object as a percentage. If the system recognizes that this
area has been reached during number assignment, an error message
appears. It informs the user that the end of the number range will soon
be reached.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Inform your system administrator that the number range has reached the
critical area.

Procedure for System Administrators

The number range interval must be extended or trips must be archived.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 56306 - Assigned number is in critical range (-> percent in TNRO) ?

  The SAP error message 56306, which states "Assigned number is in critical range (-> percent in TNRO)," typically occurs when the number range for a particular object (like document numbers, order numbers, etc.) is approaching its limit. This is a warning that the system is nearing the maximum number that can be assigned, which can lead to issues if not addressed.
  Cause:
  
  Number Range Limit: Each number range in SAP has a defined upper limit. When the assigned numbers approach this limit, the system generates this warning.
  Configuration Issues: The number range may not have been configured properly, or it may not have been extended to accommodate more numbers.
  High Volume of Transactions: If there is a high volume of transactions being processed, the number range can be consumed quickly.
  
  Solution:
  
  
  Check Current Number Range:
  
  Go to transaction code SNRO (Number Range Objects) and check the current status of the number range in question.
  Identify how many numbers have been assigned and how many are left.
  
  
  
  Extend the Number Range:
  
  If the number range is indeed nearing its limit, you can extend it. This can be done in the same SNRO transaction.
  Select the relevant number range object and adjust the upper limit to a higher value.
  
  
  
  Create a New Number Range:
  
  If extending the existing number range is not feasible, consider creating a new number range and assigning it to the relevant object.
  
  
  
  Monitor Usage:
  
  Regularly monitor the usage of number ranges to prevent this issue from occurring in the future. Set up alerts if necessary.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP Basis or functional team for specific instructions related to your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO - Number Range Objects
  SNUM - Number Range Maintenance
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  System Configuration: Ensure that your system is configured to handle the expected volume of transactions, which may involve adjusting number ranges periodically.
  
  By addressing the number range issue proactively, you can prevent disruptions in your SAP processes and maintain smooth operations.