How To Fix W0016 - ID empties must be set for at least one material type

SAP Error Message - Details

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 016

• Message text: ID empties must be set for at least one material type

Self-Explanatory Message

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• What is the cause and solution for SAP error message W0016 - ID empties must be set for at least one material type ?

  SAP Error Message:
  
  W0016 - ID empties must be set for at least one material type
  
  Cause:
  This warning message occurs during the configuration of material types in SAP (transaction OMS2). It indicates that for the material types defined in the system, the Number Range Interval (ID range) for material numbers has not been assigned or maintained. SAP requires that at least one material type has a number range interval assigned to it so that material master records can be created with unique material numbers.
  In other words, the system expects that for at least one material type, the number range interval (ID range) is defined and active. If none of the material types have an assigned number range interval, this warning appears.
  
  When does it occur?
  
  During material type configuration or changes.
  When setting up new material types.
  When number ranges for material master numbers are not maintained or assigned properly.
  
  
  Solution:
  
  
  Assign Number Range Intervals to Material Types:
  
  Go to transaction OMS2 (Material Types).
  Select the material type(s) you want to maintain.
  Check the field for Number Range Interval (ID interval).
  If empty, assign an appropriate number range interval.
  
  
  
  Maintain Number Ranges:
  
  Go to transaction MMNR or SNRO (Number Range Object Maintenance).
  Select the number range object MATERIAL.
  Create or check number ranges intervals for material numbers.
  Ensure the intervals are valid and active.
  
  
  
  Assign the Number Range Interval to Material Type:
  
  After maintaining number ranges, assign the relevant interval to the material type in OMS2.
  
  
  
  Save and Test:
  
  Save the configuration.
  Try creating a material master record for the material type to verify that the error/warning no longer appears.
  
  
  
  
  Additional Information:
  
  
  Material Number Ranges:
  
  Material numbers in SAP are controlled by number ranges to ensure uniqueness and consistency. Each material type can have its own number range interval or share intervals.
  
  
  Number Range Object:
  
  The number range object for materials is usually MATERIAL.
  
  
  Custom Material Types:
  
  When creating custom material types, always ensure to assign number ranges to avoid this warning.
  
  
  Warning vs. Error:
  
  This message is a warning (W0016), meaning it does not stop the process but indicates a configuration issue that should be corrected.
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  No number range interval assigned to any material type.
  
  
  Solution
  Assign a valid number range interval to at least one material type in OMS2.
  
  
  Transactions
  OMS2 (Material Types), MMNR or SNRO (Number Range Maintenance)
  
  
  Impact
  Warning during material type configuration; may cause issues creating material masters.
  
  
  
  
  If you need step-by-step guidance on maintaining number ranges or assigning them, please let me know!