Dynamics Ax Layers

 Dynamics Ax Layers

Dynamics AX 2009 consists of sixteen application object layers that contain all the
elements you see in the AOT.
These layers can be looked at as an onion with multiple layers. In the middle is the
core application in the SYS layer and the outermost layer is the user layer USR.
Therefore, when any application element is being executed the system will look at
the outermost code layer first to see if there is any code for that element; if not, it peels a layer off the onion, and tries the next layer. When it hits a layer where the element exists, it will use the code from this layer, and will not continue to peel off layers to find code for that element in the innermost layers.
Layers with their description


SYS The standard application is implemented at the lowest level,
the SYS layer.The application objects in the standard
application can never be deleted.

GLS Country/region specific changes will be developed in GLS
Layer.For e.g as you all know that Tax structure differs
from country to country.So such localization functionality
can be developed in GLS layer.

HFX HFX is an application object patch layer reserved by
Microsoft for future patching or other updates.

SL1, SL2,or SL3 A layer where the distributor can implement
vertical partner solutions.

BUS When a business partner creates their own generic solution,
their modifications are saved in the BUS layer and the top-
level application objects are used.

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.
Such modifications are saved in the VAR layer.

CUS The supervisor or administrator of an end user installation
might want to make modifications that are generic to the
company. Such modifications are saved in the CUS (CUStomer)
layer.

USR End users might want to make their own modifications, such
as in their reports.These modifications are saved in the USR
layer.
-Harry

Workflow configuration error in Dynamics Ax: 401 Unauthorized

 Workflow configuration error in Dynamics Ax: 401 Unauthorized
Some times we faced unusual error after installing Dynamics AX Workflow: “401 Unauthorized” after running Workflow infrastructure configuration wizard
 (Dynamics AX –> Administration –> Setup)
at the first time installation of Dynamics Ax then you should go through the following steps….
It is mainly happening when database, AOS, Application and workflow servers are individual (especially workflow & AOS and Database server)

1. Check AOS Service is running under an active domain user (domain\username)
2. Workflow website and workflow application pool are having the same .NET Business Connector user name Identity (and of course, this should be an active domain user)
3. You added the workflow website (http://servername:portnumber/DynamicsAXWorkflow50 for example) to the trusted sites in Internet Options of AOS server
4. Run the following on the Workflow server:

• After checking above points and then perform the following steps

1. Start a command prompt.
2. Locate and then change to the directory that contains the Adsutil.vbs file. (By default, this directory is C:\Inetpub\Adminscripts.)
3. Type the following command, and then press ENTER: cscript adsutil.vbs set w3svc/NTAuthenticationProviders “NTLM”
4. To verify that the NtAuthenticationProviders metabase property is set to NTLM, type the following command, and then press ENTER: cscript adsutil.vbs get w3svc/NTAuthenticationProviders

The output:

NTAuthenticationProviders       : (STRING) "NTLM"

After completing above procedure successfully then please take a restart of Ax and IIS service and then workflow infrastructure configuration wizard will work fine.

-Harry