How To Fix PPH_MRP146 - Planning with forecast demand not supported in MRP Live on HANA

SAP Error Message - Details

• Message type: E = Error

• Message class: PPH_MRP -

• Message number: 146

• Message text: Planning with forecast demand not supported in MRP Live on HANA

What causes this issue?

A forecast exists for the material and the forecast requirements are to
be considered in the planning run. However, the MRP Live on HANA run
does not support the planning of forecast requirements.
Note:
Do not confuse forecast requirements with planned independent
requirements. MRP Live on HANA supports the planning of planned
independent requirements. With regard to forecasts, MRP Live on HANA
supports the following scenarios:
Execution of a forecast for the total consumption. The forecast itself
is not relevant to planning but can be used as the basis for planned
independent requirements which are included in the MRP Live on HANA run.
Execution of a forecast for the calculation of the reorder point and
safety stock for consumption-based planning.

System Response

The MRP Live report plans the material using classic MRP.

How to fix this error?

The planning run using classic MRP may be slower than the planning run
using MRP Live on HANA. To enable the planning of the material in MRP
Live on HANA, proceed as follows:
Check whether the material was included in a forecast recently. If the
material was only included in forecasts in the past for which forecast
requirements still exist, they will prevent the material from being
included in the MRP Live on HANA run. In this case, delete the forecasts
or select an MRP procedure that does not take account of the forecast.
If the forecast is executed for the total consumption and included in
the planning run (for example, for the MRP procedure ?VV?), you can
define a similar process by setting the planning strategy group ?10?
(make-to-stock) in the material master and selecting an MRP procedure
that enables the execution of the forecast for the total consumption
whereby the forecast is not relevant to planning. Then you can use the
forecast as the basis for planned independent requirements which can be
included in the MRP Live on HANA run.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPH_MRP146 - Planning with forecast demand not supported in MRP Live on HANA ?

  The SAP error message PPH_MRP146 indicates that planning with forecast demand is not supported in MRP Live on HANA. This error typically arises when you are trying to run a Material Requirements Planning (MRP) process that involves forecast demand, which is not compatible with the MRP Live functionality in SAP S/4HANA.
  Cause:
  
  MRP Live Limitations: MRP Live in SAP S/4HANA does not support planning with forecast demand. This is a design limitation of the MRP Live engine, which is optimized for real-time processing and does not include certain functionalities available in the traditional MRP.
  Configuration Issues: The system may be configured to use forecast demand in a way that is incompatible with MRP Live.
  Material Master Settings: The material master settings for the relevant materials may not be correctly configured to support MRP Live processing.
  
  Solution:
  
  Use Classic MRP: If you need to plan with forecast demand, you may need to switch to the classic MRP (transaction MD01 or MD02) instead of using MRP Live. This can be done by changing the planning mode in your MRP run.
  Adjust Planning Parameters: Review the planning parameters and settings in the material master. Ensure that the materials are set up correctly for MRP Live and do not rely on forecast demand.
  Check MRP Type: Ensure that the MRP type assigned to the materials is compatible with MRP Live. For example, MRP types like "PD" (MRP) are typically used with MRP Live, while others may not be.
  Review Forecast Settings: If you are using forecast demand, consider whether you can adjust your planning strategy to use actual demand or other methods that are compatible with MRP Live.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates regarding MRP Live and forecast demand. SAP frequently updates its documentation and provides fixes for known issues.
  Documentation: Review the official SAP documentation for MRP Live in S/4HANA to understand its capabilities and limitations.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions or workarounds.
  
  By following these steps, you should be able to address the PPH_MRP146 error and successfully run your MRP processes.