How To Fix >U306 - No free key up to no. &1 found for the payment lot

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 306

• Message text: No free key up to no. &1 found for the payment lot

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 >U306 - No free key up to no. &1 found for the payment lot ?

  The SAP error message "U306 No free key up to no. &1 found for the payment lot" typically occurs in the context of payment processing, particularly when dealing with payment lots in the SAP system. This error indicates that the system is unable to find a free key for the specified payment lot number, which is necessary for processing payments.
  Cause:
  
  Exhausted Key Range: The key range for payment lots may have been exhausted. This can happen if the system has reached the maximum number of payment lots that can be created with the current configuration.
  Configuration Issues: There may be issues with the configuration of the payment lot settings in the system, such as incorrect number ranges or missing settings.
  Number Range Object: The number range object associated with payment lots may not be properly defined or may not have sufficient intervals defined.
  Authorization Issues: There may be authorization issues preventing the system from accessing the required number range.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Find the number range object associated with payment lots (usually FZP or similar).
  Check the intervals defined for the number range and ensure that there are free numbers available.
  
  
  
  Extend Number Range:
  
  If the number range is exhausted, you may need to extend it. This can be done by editing the number range intervals in the same SNRO transaction.
  Ensure that the new intervals do not overlap with existing ones.
  
  
  
  Review Payment Lot Settings:
  
  Check the configuration settings for payment lots in the relevant customizing transaction (e.g., OBPM1 for payment lot management).
  Ensure that all necessary settings are correctly configured.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to create and manage payment lots. This can be checked in transaction SU53 or by consulting with your security team.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. You can search for notes in the SAP Support Portal.
  
  
  
  System Restart:
  
  In some cases, a system restart or a refresh of the number range buffer may resolve temporary issues.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO - Number Range Objects
  OBPM1 - Payment Lot Management
  SU53 - Authorization Check
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on payment lot management and number range configuration.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis or technical team for further investigation.