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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• 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 actual production capabilities or constraints.
  
  Solution:
  
  Review Quantity Inputs: Check the quantities entered for the steps in the planning process. Ensure that the quantity for the current step is less than the succeeding step's quantity.
  Adjust Planning Steps: If necessary, adjust the planning steps or the quantities defined in the routing or production version to ensure they are consistent.
  Check Master Data: Review the master data related to the product, including BOM and routing, to ensure that all quantities are correctly defined and aligned.
  Consult Configuration Settings: If the issue persists, consult with your SAP configuration team to review the settings related to the planning process and ensure they are correctly configured.
  Testing: After making adjustments, test the planning process again to ensure that the error does not reoccur.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/SDP94 (for planning board) or /SAPAPO/MC90 (for planning book) to analyze the planning data.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Documentation: Refer to SAP documentation on Advanced Planning and Optimization for more detailed information on planning processes and error handling.
  
  If the problem continues after following these steps, it may be beneficial to engage with SAP support or your internal SAP team for further investigation.