How To Fix WSTRN087 - Select only one quota scale

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTRN - Message for Prepack Creation and Planning Dialog

• Message number: 087

• Message text: Select only one quota scale

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSTRN087 - Select only one quota scale ?

  SAP Error Message:
  
  WSTRN087 - Select only one quota scale
  
  Cause:
  This warning message appears when you try to assign or select more than one quota scale for a single quota in the SAP Time Management module (usually in Time Quota or Absence Quota configuration). Each quota can only be linked to one quota scale, which defines how the quota is calculated or granted (e.g., based on working time, seniority, etc.).
  If multiple quota scales are assigned or selected for the same quota, the system cannot determine which scale to use, hence the warning.
  
  Explanation:
  
  Quota Scale: A quota scale is a table or rule that defines how the quota entitlement is calculated, often based on employee attributes like length of service, age, or working hours.
  Quota: Represents a time entitlement, such as vacation days, special leave, or compensatory time off.
  Restriction: Each quota must be linked to exactly one quota scale to avoid ambiguity.
  
  
  Solution:
  
  
  Check Quota Configuration:
  
  Go to transaction SPRO ? Personnel Management ? Time Management ? Time Quota ? Define Time Quotas.
  Select the quota in question and verify the quota scale assigned.
  
  
  
  Ensure Only One Quota Scale is Assigned:
  
  If multiple quota scales are assigned, remove the extra ones so that only one quota scale remains linked to the quota.
  
  
  
  Check Infotypes or Time Quota Types:
  
  If the error occurs during data entry (e.g., in Infotype 2006 - Absences or 2007 - Attendances), ensure that only one quota scale is selected or relevant for the quota type.
  
  
  
  Review Customizing for Quota Scales:
  
  In case of custom quota scales, verify that the configuration is consistent and does not assign multiple scales to the same quota.
  
  
  
  Testing:
  
  After correction, test the quota assignment or time evaluation to confirm the warning no longer appears.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  PT_QTA10 - Maintain Quota Types
  PT_QTA20 - Maintain Quota Scales
  PT60 - Time Evaluation (to check quota calculation)
  
  
  
  SAP Notes:
  
  Check SAP Notes related to quota scales and time quota configuration if the problem persists.
  
  
  
  Documentation:
  
  SAP Help Portal: Time Quota Management
  SAP Time Management Configuration Guides
  
  
  
  
  Summary:
  WSTRN087 warns that only one quota scale should be selected per quota. To resolve, ensure that each quota is linked to a single quota scale in the configuration and during data entry. This prevents ambiguity in quota calculation and ensures correct time quota management.