Message type: E = Error
Message class:  CKMLMV - Message class for quantity structure tool 
Message number: 201
Message text: Please maintain the master data for material &1
No costing data or accounting data exists for material &v1& in plant
&v2&.
The system can not assign a Controlling level to the material.
Create an accounting view or a costing view in the material master
record for material &V1& in plant &V2&.
<DS:TRAN.MM01>Execute function</>
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CKMLMV201 indicates that there is an issue with the master data for a specific material in the context of Material Ledger (ML) and its associated functionalities. This error typically arises when the system requires certain master data to be maintained for a material, but it is either missing or incomplete.
Cause: The error message CKMLMV201 is triggered when: The material master data for the specified material (&1) is not fully maintained. The material is not set up for the Material Ledger. The valuation area or plant settings for the material are not correctly configured. The material is not assigned to a valuation class or does not have a valid accounting view.
Solution: To resolve the CKMLMV201 error, you can take the following steps: Check Material Master Data: Go to the Material Master (Transaction Code: MM03) and enter the material number (&1). Ensure that all relevant views (especially Accounting and Costing views) are maintained. Verify that the material is
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CKMLMV200 <<<<<<<<<<<<<<<< Functiongroup CKMLMVUTIL >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CKMLMV170 Costing run blocked by user &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CKMLMV202 The valuation area for plant &1 cannot be deterimined.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CKMLMV203 No cost estimate number was found for material &1, plant &2.
What causes this issue?  In the valuation segment (Table MBEW) of material &V1& in plant &V2&, the cost estimate number has not been f...
Click on this link to search all SAP messages.