How To Fix K8129 - Resource &1 can only be planned with material &2 under cost element &3

K8129 - Overview

• Message type: E = Error

• Message class: K8 - CO Planning: Messages for Function Group KAPP

• Message number: 129

• Message text: Resource &1 can only be planned with material &2 under cost element &3

What causes this issue?

You want to plan resource &V1& under cost element &V4&. In the master
record for this resource you defined that it should be costed with
material &V2&. However, in material &V2& it is defined that it can only
be planned under cost element &V3&. This means that the system cannot
determine a valid price using the combination you have selected.

System Response

In planning, the system takes a resource price of zero for the
valuation.

How to fix this error?

Plan the resource under cost element &V3&, or, if required, change the
cost element of material &V2& to &V4&.
Note that in both cases, the system does not trigger automatic
recalculation of any records that may exist on the database. You should
therefore carry out the recalculation manually (Planning: Initial
Screen: Extras -> Resource Planning -> Recalculation).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message K8129 - Resource &1 can only be planned with material &2 under cost element &3 ?

  The SAP error message K8129 indicates that there is a restriction on planning a resource (like a machine or labor) with a specific material under a certain cost element. This error typically arises in the context of production planning or cost planning within SAP, particularly when using the Controlling (CO) module.
  
  Cause:
  The error message K8129 is triggered when:
  
  Resource and Material Mismatch: The resource you are trying to plan is not allowed to be used with the specified material under the given cost element. This could be due to configuration settings in the system.
  Cost Element Configuration: The cost element may not be set up to allow planning for the specified resource and material combination.
  Master Data Issues: There may be issues with the master data for the resource, material, or cost element that restricts their combination.
  
  
  Solution:
  To resolve the K8129 error, you can take the following steps:
  
  
  Check Resource and Material Configuration:
  
  Verify the configuration settings