Message type: E = Error
Message class: MR - Stock overview for generic materials
Message number: 017
Message text: Class & unknown
You are using a material group or a generic material for which no data
exists in the classification system. There must be a serious database
inconsistency.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Notify your system administrator.Error message extract from SAP system. Copyright SAP SE.
MR017
- Class & unknown ?The SAP error message MR017, which states "Class & unknown," typically occurs in the context of the Materials Management (MM) module, particularly when dealing with invoice verification or material documents. This error indicates that the system is unable to recognize or find a specific class that is required for processing. Causes: Missing Class Definition: The class that is referenced in the transaction is not defined in the system. Incorrect Configuration: There may be an issue with the configuration settings related to classification or material master data. Authorization Issues: The user may not have the necessary authorizations to access the class or related data. Data Inconsistencies: There could be inconsistencies in the data that are causing the system to fail to recognize the class. Solutions: Check Class Definition: Go to the transaction code CL02 (Change Class) or CL03 (Display Class) to verify if the class exists. If it does not exist, you may need to create it using CL01 (Create
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MR016
Material group & unknown
What causes this issue? You have entered a material group or material group hierarchy level that does not exist in the system.System Response The sy...
MR015
Reference to classification missing for generic material &
What causes this issue? You are using a generic material for which no data exists in the classification system. There must be a serious database inco...
MR018
You do not have the authorization to read class &
What causes this issue? You wanted to read the characteristics for a generic material or for a material group. However, you do not have the read auth...
MR019
Position cursor in tree structure
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
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