How To Fix /UI2/CDMFCC303 - LREP exception while storing container '&1' of user &2 into '&3' layer

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CDMFCC -

• Message number: 303

• Message text: LREP exception while storing container '&1' of user &2 into '&3' layer

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CDMFCC303 - LREP exception while storing container '&1' of user &2 into '&3' layer ?

  The SAP error message /UI2/CDMFCC303 LREP exception while storing container '&1' of user &2 into '&3' layer typically indicates an issue related to the Layered Repository (LREP) in the SAP Fiori/UI5 environment. This error can occur when there is a problem with saving a container (which can be a UI5 application or component) into a specific layer (like the "CUSTOMER" or "DEVELOPER" layer) for a specific user.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to perform the action of storing the container in the specified layer.
  Layer Configuration: There may be issues with the configuration of the layers in the LREP, such as incorrect settings or missing layers.
  Technical Issues: There could be underlying technical issues, such as database problems, inconsistencies in the LREP, or issues with the transport system.
  Container State: The container being saved may be in an invalid state or may have dependencies that are not met.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to save containers in the specified layer. This can be done by reviewing the user's roles and authorizations in the SAP system.
  Review Layer Configuration: Check the configuration of the layers in the LREP. Ensure that the layer you are trying to save to is correctly set up and available.
  Check for Technical Issues: Look into the system logs (transaction SLG1) for any related error messages that might provide more context. You may also want to check the database for any inconsistencies.
  Validate Container State: Ensure that the container you are trying to save is in a valid state. If there are any dependencies, make sure they are resolved before attempting to save.
  Transport Management: If the issue is related to transport, ensure that the transport routes and configurations are correctly set up.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP Fiori/UI5 Documentation: Review the official SAP documentation for Fiori/UI5 development and LREP management for best practices and guidelines.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Use transaction codes like SLG1 (Application Log) or ST22 (Dump Analysis) to gather more information about the error.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.