How To Fix IW012 - MRP-relevance will be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 012

• Message text: MRP-relevance will be changed

<LB>&CAUSE&</>
In Customizing under <LS>Define Field Selection for Order Operations
(PM and CS)</> you have configured the field <LS>Reservation/P.Req</>
such that it is only displayed when control key &V1& is used. Thus, it
cannot be used to change the MRP-relevance.

System Response

The MRP relevance is reset depending on the Customizing settings under
<LS>Define Change Documents, Collective Purchase Requisitions, MRP
Relevance</> and depending on the order status. The system proceeds as
follows:
<ZH>When creating an order:</>
The system sets the MRP relevance, that is currently configured with
the Customizing setting <LS>Define Change Documents, Collective
Purchase Requisition, MRP-Relevance</>.

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

<ZH>In status created (CRTD):</>
If the MRP-relevance is set to <LB>never</> in Customizing, the system
sets it to <LB>never</>.
If the MRP-relevance is set to <LB>immediate</> in Customizing, the
system sets it to <LB>immediate</>.
If the MRP-relevance is set to <LB>from release</> in Customizing, the
system sets it depending on the activation of the reservation /
purchase requisition:
If the generation of reservations and purchase requisitions was
activated manually using the pushbutton <LB>Activate Res/PReq (Ctrl+F3)
</>, the MRP-relevance is set to <LB>immediate</>.
If the generation of reservations and purchase requisitions was not
activated manually, the MRP-relevance is set to <LB>from release</>.
<ZH>In status released (REL):</>
If the MRP-relevance is set to <LB>never</> in Customizing, the system
sets it to <LB>never</>.
If the MRP-relevance is set to <LB>from release</> or <LB>immediate</>
in Customizing, then the system sets it to <LB>immediate</>.
<LB>When changing an existing order:</>
The system sets the MRP-relevance that was valid when creating the
order under the Customizing setting <LS>Define Change Documents,
Collective Purchase Requisitions, MRP-Relevance</>. This ensures the
consistency of the individual operations within an order, if, for
example, new operations are added and the MRP-relevance in Customizing
has changed in the meantime.
<ZH>In status created (CRTD):</>
If the MRP-relevance in Customizing was set to <LB>never</> for
creation, then the system sets it to <LB>never</>.
If the MRP-relevance in Customizing was set to <LB>immediate</> for
creation, then the system sets it to <LB>immediate</>.
If the MRP-relevance in Customizing was set to <LB>from release</> for
creation, then it is set depending on the activation of the reservation
or purchase requisition:
If the generation of reservations and purchase requisitions was
activated manually using the pushbutton <LB>Activate Res./P.Req (Ctrl+
F3)</>, or if the activation of the reservation/purchase requisition
was triggered by the change, then the MRP-relevance is set to
<LB>immediate</>.
If the generation of reservations and purchase requisitions was not
activating manually and was not triggered by the change, then the
MRP-relevance is set to <LB>from release</>.
<ZH>In status released (REL):</>
If the MRP-relevance in Customizing was set to <LB>never</> during
creation, the system sets it to <LB>never</>.
If the MRP-relevance in Customizing was set to <LB>from release</> or
<LB>immediate</>, the system sets it to <LB>immediate</>.

How to fix this error?

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 IW012 - MRP-relevance will be changed ?

  The SAP error message IW012 ("MRP-relevance will be changed") typically occurs in the context of Material Requirements Planning (MRP) when there is an attempt to change the MRP relevance of a material or a component in a production order. This message is a warning rather than a critical error, indicating that the MRP settings for the material will be altered, which could affect planning and inventory management.
  Cause:
  The IW012 message can be triggered by several actions, including:
  
  Changing Material Master Data: If you modify the MRP-related fields in the material master (e.g., MRP type, lot size, procurement type), the system will warn you that the MRP relevance is changing.
  Modifying Production Orders: When you change a production order that includes components with MRP relevance, the system may issue this message if the changes affect how MRP processes the materials.
  Configuration Changes: Changes in the configuration settings related to MRP can also lead to this warning.
  
  Solution:
  To address the IW012 message, consider the following steps:
  
  Review Changes: Before proceeding with the changes, review the modifications you are making to ensure they are necessary and correct. Understand how these changes will impact MRP planning.
  Check MRP Settings: If you are changing the MRP type or other relevant fields, ensure that the new settings align with your planning strategy and business requirements.
  Consult Documentation: Refer to SAP documentation or your organization's guidelines on MRP settings to understand the implications of the changes you are making.
  Test in a Sandbox: If possible, test the changes in a non-production environment to see how they affect MRP calculations and planning.
  Communicate with Stakeholders: Inform relevant stakeholders (e.g., production planners, inventory managers) about the changes to ensure they are aware of the potential impacts on planning and inventory.
  
  Related Information:
  
  MRP Types: Understand the different MRP types (e.g., PD, VB, ND) and their implications on planning.
  Material Master Data: Familiarize yourself with the fields in the material master that affect MRP, such as MRP views, procurement types, and planning strategies.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to the IW012 message.
  Training: Consider training sessions or workshops on MRP processes and material master management to enhance your understanding of how changes can impact the overall supply chain.
  
  By carefully managing changes to MRP-relevant settings and understanding the implications, you can effectively handle the IW012 message and ensure smooth MRP operations.