How To Fix RTC_DOC_POSTING018 - Number range: Unsupported buffering mode in table TNRO

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_DOC_POSTING - Message Class for ACDOCC posting API from AMDP

• Message number: 018

• Message text: Number range: Unsupported buffering mode in table TNRO

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_DOC_POSTING018 - Number range: Unsupported buffering mode in table TNRO ?

  The SAP error message RTC_DOC_POSTING018, which states "Number range: Unsupported buffering mode in table TNRO," typically occurs when there is an issue with the number range configuration in the SAP system. This error is related to the number range object and its buffering settings in the TNRO table, which is used to manage number ranges for various documents in SAP.
  Cause:
  
  Buffering Mode Issue: The error indicates that the buffering mode set for the number range is not supported. This can happen if the number range is configured to use a buffering mode that is not compatible with the current operation or transaction.
  Configuration Error: There may be a misconfiguration in the number range settings, such as using a non-buffered number range in a context that requires buffering.
  System Settings: The system settings or the specific transaction being executed may not support the buffering mode defined for the number range.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Find the relevant number range object and check its configuration.
  Ensure that the buffering mode is set correctly. If it is set to "Buffered," consider changing it to "Non-buffered" if the transaction does not support buffering.
  
  
  
  Adjust Buffering Settings:
  
  If the number range is intended to be buffered, ensure that the system is configured to allow buffering for that number range.
  If necessary, consult with your SAP Basis team to verify the system settings related to number range buffering.
  
  
  
  Review Transaction Context:
  
  Ensure that the transaction or process you are executing is compatible with the buffering mode of the number range.
  If the transaction does not support buffered number ranges, switch to a non-buffered number range.
  
  
  
  Testing:
  
  After making changes, test the transaction again to see if the error persists.
  If the error continues, further investigation may be required to identify any other underlying issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO: To manage number range objects.
  SNUM: To display number ranges.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and buffering modes.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  Support: If the issue persists after checking the configuration and settings, consider reaching out to SAP support for further assistance.
  
  
  By following these steps, you should be able to resolve the RTC_DOC_POSTING018 error and ensure that your number range configuration is set up correctly.