How To Fix M7642 - Last stratum not optimum w. regard to sample elements. Check boundaries

SAP Error Message - Details

• Message type: E = Error

• Message class: M7 - Inventory Management and Physical Inventory

• Message number: 642

• Message text: Last stratum not optimum w. regard to sample elements. Check boundaries

What causes this issue?

When forming the stratification, the system found that the ratio of
stock elements to the number of chosen sampling elements is not ideal
in the last samling stratum.
The system may not be able to complete the inventory sampling
successfully if there are not enough sampling elements for subsequent
random selections in the last stratum.

How to fix this error?

If necessary, check whether you can improve the stratification by
increasing or decreasing the upper value limit.
INCLUDE MMIM_M7_641_642 OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M7642 - Last stratum not optimum w. regard to sample elements. Check boundaries ?

  The SAP error message M7642, "Last stratum not optimum with regard to sample elements. Check boundaries," typically occurs in the context of sampling and stratification in SAP's Quality Management (QM) module. This error indicates that the last stratum (or layer) of a sampling plan is not optimal based on the defined boundaries for the sample elements.
  Cause:
  
  Stratum Definition Issues: The boundaries defined for the strata may not be appropriate, leading to an imbalance in the number of sample elements across the strata.
  Sample Size: The total sample size may not be sufficient to cover the defined strata effectively, resulting in one or more strata being underrepresented.
  Boundary Overlap: There may be overlapping boundaries between strata, causing confusion in how samples are allocated.
  Data Entry Errors: Incorrect data entry when defining the sampling plan or strata can lead to this error.
  
  Solution:
  
  Review Stratum Boundaries: Check the boundaries defined for each stratum in the sampling plan. Ensure that they are set correctly and do not overlap.
  Adjust Sample Size: If the total sample size is too small, consider increasing it to ensure that all strata can be adequately represented.
  Reassess Stratum Allocation: Ensure that the allocation of sample elements to each stratum is logical and reflects the intended sampling strategy.
  Consult Documentation: Refer to SAP documentation or guidelines for best practices in defining sampling plans and strata.
  Test with Different Parameters: If possible, test the sampling plan with different parameters to see if the error persists.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on sampling plans.
  Quality Management Module: Familiarize yourself with the QM module's functionalities related to sampling and stratification.
  Training and Support: If the issue persists, consider reaching out to SAP support or consulting with a professional who specializes in SAP QM for further assistance.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the M7642 error and optimize your sampling plan.