How To Fix /STTPEC/MC_MD001 - Serialization type cannot be "Not serialized"

SAP Error Message - Details

• Message type: E = Error

• Message class: /STTPEC/MC_MD -

• Message number: 001

• Message text: Serialization type cannot be "Not serialized"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STTPEC/MC_MD001 - Serialization type cannot be "Not serialized" ?

  The SAP error message /STTPEC/MC_MD001 Serialization type cannot be "Not serialized" typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where serialization is relevant. This error indicates that a certain process or transaction is attempting to use a serialization type that is not allowed or not appropriate for the operation being performed.
  Cause:
  
  
  Incorrect Serialization Setting: The error usually arises when a material or product is set to "Not serialized" in a context where serialization is required. This can happen if the system expects serialized handling for certain operations (like tracking individual items) but the configuration does not support it.
  
  
  Configuration Issues: The configuration settings for the material master or the specific transaction may not align with the requirements of the process being executed.
  
  
  Master Data Issues: The material master data may not be correctly set up to handle serialization, leading to conflicts when trying to process transactions that require serialized items.
  
  
  Solution:
  
  
  Check Material Master Settings: Review the material master data for the affected material. Ensure that the serialization settings are correctly configured. If the material should be serialized, update the serialization type accordingly.
  
  
  Adjust Transaction Settings: If the transaction you are trying to execute requires serialized items, ensure that the transaction settings are aligned with the material's serialization requirements.
  
  
  Review Configuration: Check the configuration settings in the relevant customizing transactions (like SPRO) to ensure that serialization is properly set up for the relevant processes.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on serialization settings and requirements for the module you are working with.
  
  
  Testing: After making changes, perform tests to ensure that the error does not reoccur and that the system behaves as expected.
  
  
  Related Information:
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to serialization errors. Sometimes, specific versions of SAP may have bugs that are addressed in later updates.
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MM03 (Display Material), and customizing transactions related to serialization.
  
  
  User Roles and Authorizations: Ensure that the user executing the transaction has the necessary authorizations to make changes to material master data and serialization settings.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.