How To Fix /UI5/DTA018 - Deployment prohibited in layer '&1' in case of a customer system

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/DTA -

• Message number: 018

• Message text: Deployment prohibited in layer '&1' in case of a customer system

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/DTA018 - Deployment prohibited in layer '&1' in case of a customer system ?

  The SAP error message /UI5/DTA018 Deployment prohibited in layer '&1' typically indicates that there is an issue with the deployment of UI5 applications in a specific layer of the SAP system. This error is often encountered in the context of SAP Fiori applications and the SAPUI5 framework.
  Cause:
  The error message suggests that the deployment of the UI5 application is not allowed in the specified layer (e.g., "CUSTOMER", "SAP", etc.). This can happen due to several reasons:
  
  
  Layer Restrictions: The system may have restrictions on deploying applications in certain layers. For example, customer-specific changes may only be allowed in the "CUSTOMER" layer, while modifications in the "SAP" layer are restricted.
  
  
  Transport Management: The transport management settings may prevent the deployment of certain objects in specific layers, especially if they are not meant to be modified or deployed in that layer.
  
  
  Configuration Issues: There may be configuration settings in the system that restrict deployment based on the layer.
  
  
  Development Environment: The error may occur if you are trying to deploy an application from a development environment to a production environment without the necessary approvals or configurations.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Layer Configuration: Verify the configuration settings for the layers in your SAP system. Ensure that you are trying to deploy the application in the correct layer.
  
  
  Review Transport Requests: If you are using transport requests, ensure that the transport request is correctly configured and that it allows for deployment in the specified layer.
  
  
  Consult Documentation: Refer to the SAP documentation for guidelines on deploying UI5 applications and the restrictions associated with different layers.
  
  
  Use the Correct Environment: Ensure that you are deploying the application in the appropriate environment (development, quality assurance, production) and that you have the necessary authorizations.
  
  
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights specific to your system configuration and help troubleshoot the issue.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAPUI5 documentation for best practices on deployment and layer management.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.