How To Fix MG179 - &3: Period indicator &1 must not be used together with MRP type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 179

• Message text: &3: Period indicator &1 must not be used together with MRP type &2

What causes this issue?

You have changed the period indicator. The combination of period
indicator &v1& together with MRP type &v2& in MRP area &v3& must not be
used since for MRP type &v2& functionality 'Material Doc.' is switched
on. This setting is not supported.

System Response

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

How to fix this error?

Change the settings. Otherwise the determination of consumption values
would not be correct.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MG179 - &3: Period indicator &1 must not be used together with MRP type &2 ?

  The SAP error message MG179 indicates a conflict between the period indicator and the MRP (Material Requirements Planning) type assigned to a material. Specifically, the error message format is as follows:
  
  &1: Period indicator
  &2: MRP type
  &3: Additional information or context
  
  Cause:
  This error typically occurs when the configuration of the material master data is inconsistent. The period indicator you are trying to use is not compatible with the specified MRP type. For example, certain MRP types may require specific period indicators, and using them together can lead to this error.
  Common Scenarios:
  
  MRP Type Configuration: The MRP type assigned to the material does not support the period indicator you are trying to use. For instance, if the MRP type is set to "PD" (for planning with MRP), it may not allow certain period indicators that are meant for other types of planning.
  Material Master Data: The material master record may have been incorrectly set up, leading to this conflict.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03).
  Check the MRP views and verify the MRP type and period indicator settings.
  Ensure that the period indicator is appropriate for the assigned MRP type.
  
  
  
  Review MRP Type Configuration:
  
  Use transaction code OMPR to review the configuration of the MRP types.
  Check the settings for the MRP type in question and see which period indicators are allowed.
  
  
  
  Change the MRP Type or Period Indicator:
  
  If the period indicator is not compatible with the MRP type, consider changing either the MRP type or the period indicator to a compatible option.
  Make sure to consult with your SAP configuration team or refer to documentation to understand the implications of changing these settings.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  
  
  
  Related Information:
  
  MRP Types: Different MRP types (like PD, VB, etc.) have specific functionalities and are designed for different planning scenarios.
  Period Indicators: These are used to define how planning periods are structured (e.g., weekly, monthly).
  SAP Documentation: Refer to SAP Help documentation for detailed explanations of MRP types and their configurations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.