How To Fix RM306 - Error reading material master record for material &1 and plant &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RM - Messages for Repetitive Manufacturing

• Message number: 306

• Message text: Error reading material master record for material &1 and plant &2

What causes this issue?

Although an entry exists for the specified material/plant, an error
occurred reading the material master data. Possibly, you have not
maintained all the required views of the material master record for
this material.

How to fix this error?

Check the material's master data or contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RM306 - Error reading material master record for material &1 and plant &2 ?

  The SAP error message RM306 indicates that there is an issue with reading the material master record for a specific material and plant combination. This error typically arises in scenarios where the system is trying to access or process data related to a material that does not exist or is not properly configured in the system.
  Causes of RM306 Error
  
  Material Not Created: The material specified in the error message may not have been created in the system for the specified plant.
  Plant Not Assigned: The material may exist, but it is not assigned to the specified plant.
  Data Inconsistency: There may be inconsistencies or corruption in the material master data.
  Authorization Issues: The user may not have the necessary authorizations to view or access the material master data.
  Incorrect Material Number: The material number provided in the error message may be incorrect or mistyped.
  
  Solutions to RM306 Error
  
  
  Check Material Existence:
  
  Use transaction code MM03 to check if the material exists in the system. Enter the material number and check if it is available for the specified plant.
  
  
  
  Verify Plant Assignment:
  
  If the material exists, ensure that it is assigned to the correct plant. You can check this in the material master data under the plant-specific views.
  
  
  
  Create or Update Material:
  
  If the material does not exist, create it using transaction code MM01. If it exists but is not assigned to the plant, you may need to create or update the material master record for that specific plant.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the material master data. This can be checked with the security team or by reviewing the user roles.
  
  
  
  Data Consistency Check:
  
  If you suspect data corruption, you may need to run consistency checks or consult with your SAP Basis team to investigate any underlying database issues.
  
  
  
  Review Input Data:
  
  Double-check the input data for any typos or incorrect values that may have led to the error.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  MM04: Material Change Documents
  MMBE: Stock Overview
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the RM306 error. You can search for relevant notes in the SAP Support Portal.
  
  
  Debugging: If the issue persists, consider debugging the program or transaction that is generating the error to identify the root cause.
  
  
  By following these steps, you should be able to resolve the RM306 error and ensure that the material master data is correctly configured in your SAP system.