How To Fix UPC526 - No combinations could be generated

SAP Error Message - Details

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 526

• Message text: No combinations could be generated

What causes this issue?

The planning layout was parameterized so that combinations should be
formed for all characteristics of the planning level, in accordance
with the maintenance of characteristic relationships. However,
combinations were generated in individual steps, but in total there
were no valid combinations.

System Response

Since no valid combinations can be formed within the selection, manual
planning is not possible.,,,,

How to fix this error?

If required, correct the settings in the characteristic relationships
in the context of the current planning area '&V1&'.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPC526 - No combinations could be generated ?

  The SAP error message UPC526 ("No combinations could be generated") typically occurs in the context of SAP Advanced Planning and Optimization (APO) or SAP Integrated Business Planning (IBP) when the system is unable to generate combinations for a specific planning object, such as a product or a location. This can happen for various reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  Missing Master Data: The required master data (like product, location, or resource) may not be set up correctly or may be missing.
  Incorrect Planning Parameters: The planning parameters or settings may not be configured correctly, leading to an inability to generate combinations.
  Data Inconsistencies: There may be inconsistencies or errors in the data that prevent the generation of combinations.
  Combination Rules: The combination rules defined in the system may not allow for the generation of the requested combinations.
  Planning Object Restrictions: Certain restrictions or filters may be applied that limit the combinations that can be generated.
  
  Solutions:
  
  Check Master Data: Ensure that all relevant master data is correctly maintained and available in the system. This includes checking for the existence of products, locations, and any other relevant entities.
  Review Planning Parameters: Verify that the planning parameters are set correctly. This includes checking the planning version, planning horizon, and any other relevant settings.
  Data Validation: Perform a data validation check to identify any inconsistencies or errors in the data that may be causing the issue.
  Examine Combination Rules: Review the combination rules in the system to ensure they are set up correctly and allow for the generation of the required combinations.
  Remove Filters: If there are any filters or restrictions applied, consider removing them temporarily to see if combinations can be generated without them.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the error message and the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO or IBP that can help you navigate to the areas where you can check master data, planning parameters, and combination rules.
  SAP Notes: Check the SAP Support Portal for any notes or patches related to this error message, as there may be known issues or fixes available.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP expert or support team for further assistance.