How To Fix GPSC020 - Quantity must be less than the succeeding step & quantity of &

GPSC020 - Overview

• Message type: E = Error

• Message class: GPSC - PSC Application

• Message number: 020

• Message text: Quantity must be less than the succeeding step & quantity of &

You have entered a value that is less than the value of the preceeding
step. Each step represents the upper limit value for each step. As the
the step values increase, so should the quantity from value.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message GPSC020 - Quantity must be less than the succeeding step & quantity of & ?

  The SAP error message GPSC020, which states "Quantity must be less than the succeeding step & quantity of &," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where planning and scheduling are involved. This error indicates that the quantity specified in a particular step exceeds the quantity allowed in the subsequent step, which can disrupt the planning process.
  
  Cause:
  
  Incorrect Quantity Input: The quantity entered for a specific step in a production or planning process is greater than the quantity defined for the next step.
  
  Configuration Issues: There may be issues with the configuration of the planning steps, such as incorrect settings in the routing or production version.
  Data Integrity Issues: There could be inconsistencies in the master data, such as BOM (Bill of Materials) or routing data, leading to mismatched quantities.
  Planning Parameters: The planning parameters set for the product or process may not align with the