How To Fix /SAPAPO/ATP_BOP601 - Less than &1 groups could be built, grouping cancelled

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP_BOP -

• Message number: 601

• Message text: Less than &1 groups could be built, grouping cancelled

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 /SAPAPO/ATP_BOP601 - Less than &1 groups could be built, grouping cancelled ?

  The SAP error message /SAPAPO/ATP_BOP601 indicates that the system was unable to build the required number of groups for the Available-to-Promise (ATP) check in the Advanced Planning and Optimization (APO) module. Specifically, it states that "Less than &1 groups could be built, grouping cancelled," where &1 represents the minimum number of groups that were expected to be created.
  Cause:
  This error can occur due to several reasons, including:
  
  Insufficient Data: There may not be enough stock or demand data available to create the required groups.
  Configuration Issues: The settings in the APO system for grouping may not be correctly configured, leading to an inability to form the necessary groups.
  Master Data Issues: Problems with master data, such as missing or incorrect product or location data, can prevent the grouping process from completing successfully.
  Planning Version Issues: The planning version being used may not have the necessary data or may be inactive.
  Resource Constraints: There may be limitations in system resources or performance issues that prevent the grouping process from executing properly.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Availability: Ensure that there is sufficient stock and demand data available for the products involved in the ATP check. Verify that the relevant master data is complete and accurate.
  
  
  Review Configuration: Check the configuration settings for the ATP grouping process in the APO system. Ensure that the grouping criteria are set correctly and that the system is configured to allow for the creation of the required number of groups.
  
  
  Validate Master Data: Review the master data for the products and locations involved. Ensure that all necessary data is present and correctly maintained.
  
  
  Examine Planning Versions: Make sure that the planning version you are using is active and contains the necessary data for the ATP check.
  
  
  Monitor System Performance: Check for any performance issues or resource constraints in the system that may be affecting the grouping process. If necessary, optimize system performance or increase resources.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide additional guidance on troubleshooting.
  
  
  Testing: After making any changes, perform tests to ensure that the grouping process can now complete successfully without triggering the error.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SAPAPO/ATC (for ATP checks) or /SAPAPO/SDP94 (for planning book) to analyze the data and settings.
  SAP Help Documentation: Refer to the official SAP documentation for ATP and APO for detailed information on configuration and troubleshooting.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.