Layers [AX 2012]
Updated: September 20, 2011
Applies To: Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012
In Microsoft Dynamics AX, a layer system is used to manage elements. The USR layer is the top layer and the SYS layer is the bottom layer, and each layer has a corresponding patch layer above it.
The following table describes the application object layers in Microsoft Dynamics AX:
| Layer | Description |
|---|---|
| USR | The user layer is for user modifications, such as reports. |
| CUS | The customer layer is for modifications that are specific to a company. |
| VAR | Value Added Resellers (VAR) can make modifications or new developments to the VAR layer as specified by the customers or as a strategy of creating an industry specific solution. |
| ISV | When an Independent Software Vendor (ISV) creates their own solution, their modifications are saved in the ISV layer. |
| SLN | The solution layer is used by distributors to implement vertical partner solutions. |
| FPK | The FPK layer is an application object patch layer reserved by Microsoft for future patching or other updates. For more information, see Patch Layers. |
| GLS | When the application is modified to match country or region specific legal demands, these modifications are saved in the GLS layer. |
| SYS | The standard application is implemented at the lowest level, the SYS layer. The application objects in the standard application can never be deleted. |
Each layer has a corresponding patch layer that can be used to incorporate updates to your application or to store conflicts when you import models into a layer. For more information about patch layers, see Patch Layers.
