How To Fix IW015 - MRP-relevance will be changed

IW015 - Overview

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 015

• Message text: MRP-relevance will be changed

What causes this issue?

In Customizing under <LS>Define field selection for components (PM and
CS)</>, you have configured the field <LS>Reservation/P.Req</> such
that it is only displayed when the item category &V1& is used. Thus,
it cannot be used to change the MRP-relevance.

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

System Response

The MRP-relevance is reset depending on the Customizing settings under
<LS>Define Change Documents, Collective Purchase Requisition, 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 <ZH>Define Change Documents, Collective Purchase
Requisition, MRP-Relevance</>.
<ZH>In status created (CRTD):</>
If the MRP-relevance in Customizing is set to <LB>never</>, the system
sets it to <LB>never</>.
If the MRP-relevance in Customizing is set to <LB>immediate</>, the
system sets it to <LB>immediate</>.
If the MRP-relevance in Customizing is set to <LB>from release</>, 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)</>, then the MRP-relevance is set to <LB>immediate</>.
If the generation of reservations and purchase requisitions was not
manually activated, the MRP-relevance is set to <LB>from release</>.
<ZH>In status released (REL):</>
If the MRP-relevance in Customizing is set to <LB>never</>, the system
sets it to <LB>never</>.
If the MRP-relevance in Customizing is set to <LB>from release</> or
<LB>immediate</>, the system sets it to <LB>immediate</>.
<ZH>When changing an existing order:</>
The system sets the MRP-relevance that applied when the order was
created under the Customizing setting <LS>Define Change Documents,
Collective Purchase Requisitions, MRP-Relevance</>. This ensures the
consistency of the individual components within an order, if, for
example, new components are added and the MRP-relevance was changed in
Customizing in the meantime.
<ZH>In status created (CRTD):</>
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>immediate</> during
creation, the system sets it to <LB>immediate</>.
If the MRP-relevance in Customizing was set to <LB>from release</>
during 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/PReq (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
manually activated and not triggered by the change, 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</> during creation, 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.

IW015 - Details

• The SAP error message IW015 ("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 IW015 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 will change.
  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 components.
  Configuration Changes: Changes in the configuration settings related to MRP can also lead to this