How To Fix IP420 - Shift > 100% is not allowed

IP420 - Overview

• Message type: E = Error

• Message class: IP - Messages for preventive maintenance

• Message number: 420

• Message text: Shift > 100% is not allowed

What causes this issue?

You have entered a shift factor of more than 100%.

System Response

The maximum possible value is 100%. The whole of the date variance
between planned date and actual date will be applied to the calculation
of the next call date in the case of a shift factor of 100%.

How to fix this error?

Correct your entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IP420 - Shift > 100% is not allowed ?

  The SAP error message "IP420 Shift > 100% is not allowed" typically occurs in the context of production planning and scheduling, particularly when dealing with capacity planning in the SAP system. This error indicates that the planned shift or utilization of a resource (like a machine or labor) exceeds 100%, which is not permissible.
  
  Cause:
  
  Over-allocation of Resources: The system is trying to allocate more work to a resource than it can handle. For example, if a machine is scheduled to operate for more than its available capacity (e.g., more than 8 hours in a day), it will trigger this error.
  Incorrect Shift Settings: The shift definitions in the system may not be set up correctly, leading to miscalculations of available capacity.
  Planning Parameters: The planning parameters or production orders may have been incorrectly defined, leading to unrealistic expectations of resource utilization.
  Data Entry Errors: Manual entries in production planning or scheduling that exceed the