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

/UI5/DTA018 - Overview

• 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