How To Fix WRF_AT899 - Quantities are too large (quantity field overflow)

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_AT - Messages for Allocation Table RTFASH

• Message number: 899

• Message text: Quantities are too large (quantity field overflow)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_AT899 - Quantities are too large (quantity field overflow) ?

  SAP Error Message:
  
  WRF_AT899 Quantities are too large (quantity field overflow)
  
  Cause:
  This error occurs when a quantity value being processed in a transaction or program exceeds the maximum allowed size or length defined for the quantity field in SAP. Essentially, the system cannot handle the quantity because it is too large to fit into the field's data type or length constraints.
  Common scenarios include:
  
  Entering or calculating a quantity that exceeds the maximum number of digits allowed.
  Data inconsistencies or incorrect unit of measure conversions leading to unexpectedly large quantities.
  Custom programs or interfaces passing quantities larger than standard SAP fields can hold.
  
  
  Explanation:
  
  SAP quantity fields are typically defined with a fixed length and decimal places (e.g., QUAN field type).
  If a quantity exceeds the maximum allowed digits (including decimals), an overflow occurs.
  This is a safeguard to prevent data corruption or incorrect postings.
  
  
  Solution:
  
  
  Check the Quantity Value:
  
  Verify the quantity being entered or processed.
  Ensure it is within the allowed range for the specific field or transaction.
  
  
  
  Review Unit of Measure (UoM):
  
  Confirm that the unit of measure is correct and consistent.
  Incorrect UoM conversions can inflate quantities unexpectedly.
  
  
  
  Adjust Quantity Precision or Length (if applicable):
  
  In some cases, adjusting the decimal places or length of the quantity field in custom developments or interfaces may be necessary.
  This requires ABAP development and careful testing.
  
  
  
  Data Correction:
  
  If the error arises from master data or transactional data, correct the data to fit within allowed limits.
  
  
  
  Check Custom Code or Interfaces:
  
  If the error occurs during data upload or interface processing, review the code or mapping logic.
  Ensure that quantities are validated and truncated or rounded appropriately before posting.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WRF_AT899 or quantity overflow issues.
  Sometimes SAP provides patches or recommendations for specific scenarios.
  
  
  
  
  Related Information:
  
  Field Data Types: Quantity fields in SAP are often defined as QUAN data type, which has a fixed length and decimal places.
  Transaction Context: This error can appear in various modules like MM (Material Management), SD (Sales and Distribution), WM (Warehouse Management), or custom programs.
  Debugging: Use transaction ST22 (dump analysis) or SM13 (update errors) to get more details if the error causes dumps or update failures.
  SAP Community and Notes: Check SAP Community forums and SAP ONE Support Launchpad for similar issues and solutions.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Quantity value exceeds the maximum allowed size for the quantity field (overflow).
  
  
  Effect
  Transaction or program cannot process the quantity, resulting in error WRF_AT899.
  
  
  Solution
  Verify and correct quantity values, check UoM, adjust custom code or data definitions.
  
  
  Related Info
  Quantity fields use fixed length and decimals; check SAP Notes and debug if needed.
  
  
  
  
  If you provide the exact transaction or scenario where this error occurs, I can help with more specific guidance.