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

56306 - Overview

• 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.

56306 - Details

• 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