How To Fix CN756 - Item & material &: Reqmnt qty & smaller than GR qty &

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 756

• Message text: Item & material &: Reqmnt qty & smaller than GR qty &

What causes this issue?

You want to reduce the requirement quantity for a material component.
However, the quantity of this component that has already been received
is larger than the new requirements quantity.

System Response

The requirements quantity is changed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN756 - Item & material &: Reqmnt qty & smaller than GR qty & ?

  The SAP error message CN756 indicates that there is a discrepancy between the required quantity of a material and the goods receipt (GR) quantity that has been recorded. Specifically, the error states that the required quantity is smaller than the quantity that has already been received. This situation typically arises in the context of project management and material requirements planning (MRP) within SAP.
  Cause:
  
  Goods Receipt Exceeds Requirement: The most common cause of this error is that the quantity of goods received (GR) for a particular item exceeds the quantity that was originally required for a project or order.
  Incorrect Requirement Planning: There may have been an error in the planning or forecasting of material requirements, leading to a mismatch between what was planned and what was received.
  Multiple GRs: If multiple goods receipts have been posted for the same item, it may lead to a situation where the total GR quantity exceeds the required quantity.
  Manual Adjustments: Manual changes to the requirement quantities or GR quantities can also lead to this error.
  
  Solution:
  
  Check GR and Requirement Quantities: Review the goods receipt and the requirement quantities for the item in question. You can do this by checking the relevant purchase order, project order, or material document.
  Adjust Requirement Quantity: If the goods receipt is correct and the requirement quantity is too low, you may need to adjust the requirement quantity to match the received quantity.
  Cancel or Adjust GR: If the goods receipt is incorrect, you may need to reverse or adjust the goods receipt to align it with the required quantity.
  Review MRP Settings: Ensure that the MRP settings and planning parameters are correctly configured to avoid future discrepancies.
  Consult with Stakeholders: If there are discrepancies that cannot be resolved, consult with relevant stakeholders (e.g., procurement, project management) to clarify the requirements and adjust accordingly.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like MB51 (Material Document List) to view goods receipts and CO03 (Display Production Order) to check the requirements for a production order.
  Material Master Data: Ensure that the material master data is accurate and up-to-date, as this can affect planning and requirements.
  Documentation: Review any documentation related to the project or order to understand the intended requirements and any changes that may have occurred.
  
  By following these steps, you should be able to resolve the CN756 error and ensure that your material requirements and goods receipts are aligned.