How To Fix WRF_APC840 - Item &1 in PL &2, level &4: Zero quantity for assortment &3 (rounding)

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 840

• Message text: Item &1 in PL &2, level &4: Zero quantity for assortment &3 (rounding)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC840 - Item &1 in PL &2, level &4: Zero quantity for assortment &3 (rounding) ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC840 Item &1 in PL &2, level &4: Zero quantity for assortment &3 (rounding)
  
  Meaning / Cause:
  This error occurs during the planning or processing of assortments in SAP (typically in Advanced Planning and Optimization or Variant Configuration scenarios). The system has calculated a zero quantity for a particular assortment item at a certain planning level, which is often due to rounding issues in quantity calculations.
  
  Item &1: The material or product item involved.
  PL &2: The planning level (e.g., plant, storage location).
  Level &4: The hierarchy or BOM level.
  Assortment &3: The assortment or variant configuration group.
  
  The zero quantity arises because the system's rounding logic has reduced a very small calculated quantity to zero, which is not acceptable for the planning or production process.
  
  Typical Causes:
  
  Rounding settings in the planning or configuration profile are too coarse, causing small quantities to round down to zero.
  Minimum lot size or minimum order quantity settings are not properly maintained.
  The assortment or variant configuration has very small demand quantities that get lost due to rounding.
  Incorrect or missing unit of measure conversions leading to fractional quantities.
  The planning run or calculation logic does not handle fractional quantities properly.
  
  
  Solution / How to Fix:
  
  
  Check Rounding Settings:
  
  Review the rounding rules in the planning profile or variant configuration.
  Adjust the rounding precision to allow smaller quantities to be considered non-zero.
  In transaction codes like SPRO under relevant planning or variant configuration settings, adjust rounding parameters.
  
  
  
  Adjust Minimum Lot Sizes:
  
  Ensure that minimum lot sizes or minimum order quantities are set appropriately so that zero quantities do not occur.
  This can be maintained in material master data (MM02) under MRP or procurement views.
  
  
  
  Review Unit of Measure (UoM) Conversions:
  
  Verify that UoM conversions are correct and do not cause fractional quantities to round down to zero.
  
  
  
  Check Assortment Configuration:
  
  Review the assortment or variant configuration to ensure that demand quantities are realistic and not too small.
  If necessary, adjust the configuration or planning parameters to handle small quantities.
  
  
  
  Modify Planning Logic or Parameters:
  
  If the error occurs during planning runs (e.g., SNP, PPDS), check the planning parameters and heuristics.
  Adjust parameters to avoid zero quantity results.
  
  
  
  Consult SAP Notes:
  
  Search for SAP Notes related to message WRF_APC840 for any patches or specific fixes.
  
  
  
  
  Additional Information:
  
  This message is informational but may block further processing if zero quantities are not allowed.
  It is common in scenarios involving assortment planning, variant configuration, or detailed planning where quantities are calculated based on forecasts or dependent demand.
  Understanding the rounding and lot-sizing logic in your SAP system is key to resolving this issue.
  If the zero quantity is acceptable in your business process, you may need to adjust system settings to allow zero or very small quantities.
  
  
  If you provide the exact SAP module or transaction where this error occurs, I can give more tailored advice.