How To Fix CO134 - Do not enter material for item category &

CO134 - Overview

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 134

• Message text: Do not enter material for item category &

What causes this issue?

When creating or changing a component, you entered a material, even
though this is not required for the item category specified (for example
"T" for text item).

How to fix this error?

You have two options:
Do not enter a material.
Change the item category.

Error message extract from SAP system. Copyright SAP SE.

CO134 - Details

• The SAP error message CO134 ("Do not enter material for item category &") typically occurs in the context of controlling and production planning, particularly when dealing with production orders or cost objects. This error indicates that a material number has been entered for an item category that does not allow for it.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Incorrect Item Category: The item category you are trying to use does not support the entry of a material number. For example, certain item categories are designed for activities or services rather than tangible materials.
  
  Configuration Issues: The configuration settings in the system may not allow for materials to be assigned to the specific item category you are using.
  Data Entry Error: There may be a mistake in the data entry process, such as selecting the wrong item category or entering a material number when it is not required.
  
  
  Solution:
  To resolve the