BizTalk – SAP Adapter – RFC_INVALID_HANDLE

All receive location green and by the moment you’ve send your first IDoc this warning occurs:

The adapter “WCF-Custom” raised an error message. Details “Microsoft.Adapters.SAP.RFCException: Details: ErrorCode=RFC_INVALID_HANDLE. AdapterErrorMessage=An exception has occurred on the listener while executing RfcWaitForRequest..”.

To solve this error you’ll need to install the BizTalk SAP Adapter Schema.

Steps:

  1. Create a BizTalk application or use the default BizTalk Application
  2. Right Click Add Resource.
  3. Browse to: <install path of Microsoft BizTalk Adapter Pack(x64)>\bin\Microsoft.Adapters.SAP.BiztalkPropertySchema.dll
  4. In the options check all.

BizTalkSchemas

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BizTalk 2016 – Installing SAP Adapter- Microsoft.Adapters.SAP.SAPGInvoker.dll

After installing BizTalk adapter pack you would expect that enabling the SAP receive location port will just work. Guess what? Error!

Could not load file or assembly ‘Microsoft.Adapters.SAP.SAPGInvoker.dll’ or one of its dependencies. The specified module could not be found.
File name: ‘Microsoft.Adapters.SAP.SAPGInvoker.dll’

To solve this error you’ll need to install the SAP Libraries. Since i have a copy of previous SAP libraries, I’ve just reinstalled those, otherwise you’ll have to download it from SAP Market Place (you’ll need someone from your company that has access to those).

Steps:

  1. Install SAP NCO Libraries:
    1. NCo3018_Net40_x64.msi
    2. NCo3018_Net20_x86.msi
  2. Copy the SAP 3.0 libraries both x86 = 32bit, x64 = 64bit on the correct folder
    1. icudt26l.dll
    2. icuin26.dll
    3. icuuc26.dll
    4. librfc32u.dll
    5. libsapu16vc71.dll
    6. libsapucum.dll

32bit folder = C:\Windows\SysWOW64

64bit folder = C:\Windows\System32

3.  Restart the host instance

 

BizTalk – File Adapter – File transport does not have read/write priveleges

Recently, I have to investigate error related to BizTalk – File Adapter. The error that was thrown was:

The Messaging Engine failed to add a receive location “{Receive Location Name}” with URL “{RecieveLocationPath}\*.*” to the adapter “FILE”. Reason: “File transport does not have read/write privileges for receive location “{RecieveLocationPath}\”. “.

I think the error was obvious, and these are the steps I’ve performed to investigate:

  1. Checked if path exists (duh!).
  2.  Checked the Share Folder settings and Security Settings (looks ok!)
  3.  Double checked which account is accessing the folder in BizTalk Admin Console. Since there was no account specified in the Authentication Tab, then I assume that this is using the default account of the Host Instance.

BTS-FileAdapter-AuthenticationTab

4. Re(enable) the Receive Location (immediately shutdown)

5. Restart the Host Instance, repeat step 4. (doesn’t work)

6. Re-enter the password of Host Instance Service (using services.msc) and restart and repeat 4 (no use!).

6. Reboot the Server (still doesn’t work).

Hmm, weird huh?

What i did next is to go to Shared Folder Management (in the server where the folder is hosted). This can be access using Run-> mmc -> Add/Remove Snap-In -> Share Folder.

From the menu, go to Open Files.

MMC-ShareFolder

What i see is: there are 2 different service accounts of BizTalk connecting to the same share folder server. Hmm.. So i changed one of the Receive Location to use the same account as the other one and repeat Step 4.  After this step, the receive locations are now green again!.

It looks like BizTalk can’t connect to a Share Folder Server using 2 different accounts.

 

 

 

 

 

Key to successful BizTalk Deployment

It’s been a while since my last blog, but IMHO this is one of important blog that I’ve ever made that can be useful pointer for every aspiring developer / companies that will/already implement application integration. Below contains a list / summary of best practices I’ve acquired in my more or less 10 years working with BizTalk, SSIS, WCF and .NET integration (primarily Microsoft Technology) but this I think is also applicable to other technology.

Design / Development:

#1 K.I.S.S (Keep it simple, stupid). Don’t get me wrong, I like complex integrations, from  multiple message correlations, requirement to aggregate certain line items with certain condition in the message to having a direct binding with delivery notification set to transmitted (multiple send port / send port groups, this will result in some zombie messages). Anyone from novice to expert BizTalk Developer can build a solution, it can be done & solve  in different ways but the key here is providing a simple and effective solution for a complex integration.

#2 Isolation with maximum reusability. Isolation for me means that the application can be deployed without having too much dependency to other BizTalk artifacts that are shared. During the design it’s always a struggle on how to seperate artifacts, on which solution / projects it should be placed to avoid having to uninstall all referencing application before you can refresh the dependency (GACing works in some situation but not for all, you’ll be surprise how BizTalk deal with it internally). Once identifying or isolating a certain integration flow whenever there’s a new requirement, we should always check whether it fits on already existing solution (extend) without having to build a new integration flow. in this case we will have maximum reuse of existing solution.

#3 Consistency. Every solution that will be build should look as if it’s build / coded by one person. Having a naming convention on BizTalk artifacts, namespace, solutions, project & folder structures should be define first. Based on experience providing a proper name is always a challenge since if you define it incorrectly, it will be a costly mistake later on.

#4 Nuget – all common code / components / libraries should be referenced from a local nuget repository. Having a local nuget repository not only simplifies referencing dependencies but also saves you once you start using TFS Build Server (autorestore feature). This means that shared assemblies is not required to be checked in together with the source codes.

#5 .NET over XLST in complex mapping   Whenever there’s a requirement for complex mapping like grouping, aggregation, unique numbering over a certain combinations or constructing a hashtable in the mapping, I always go for .NET component. Using .NET component it is easier to maintain and tested (unit testing + mockup) vs doing everything in XSLT (in which can be forgotten in time).

Build / Deployment:

#1 Release Pipeline – It’s important to define strategy on how you would build and be able to do ‘Build once’ and deploy to multiple environments. In our case, part of our strategy is to minimize branching and always build from MAIN. In TFS, we’ve implemented a Gated Checkin which means that every checkin will trigger a release pipeline. During the checkin, a build will be triggerred (MSBuild and BTDF build), it will run all unit test and copies the binaries to drop folder (only If all steps are successful). From this point the Ops can just enter a command (application name) and environment and then the automated deployment will take over..

#2 Configuration over Code  for normal deployment most of time you would see that a solution contains a powershell script for deployment, this is not bad but i think this only works on sample codes or tutorials but a problem in Enterprise deployment. For this you need a good deployment framework (compilation of scripts) to do the deployment and during the deployment preparation just replace the values in the templates like servernames, shared folders and etc.  I’ve posted some blogs earlier how to do this:

Centralize Powershell Repository:

https://randypaulo.wordpress.com/2012/02/27/powershell-centralize-powershell-script-modules-repository/

ESB Toolkit overrides BizTalk config (BTSNTSvc.exe.config)

I’ve setup a BizTalk Server 2013 environment with ESB Toolkit 2.2 and since I use Enterprise Library for logging I also updated the BTSNTSvc64.exe.config file, but when I tried to run a sample application it throws an error:

Activation error occured while trying to get instance of type LogWriter, key “”:Microsoft.Practices.ServiceLocation.ActivationException: Activation error occured while trying to get instance of type LogWriter, key “” —> Microsoft.Practices.Unity.ResolutionFailedException: Resolution of the dependency failed, type = “Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter”, name = “(none)”.

Exception occurred while: while resolving.

Exception is: InvalidOperationException – The type LogWriter cannot be constructed. You must configure the container to supply this value.

Apparently, ESBToolkit is overriding the BizTalk configuration.

Solution:

Move the configuration to <ESB Toolkit Installation Folder>\esb.config file.

BizTalk: How to fix regional settings problem (decimal number formatting)

The regional settings of the operating system wherein your BizTalk Server is hosted, affects how the numbers/date are formatted. This in some cases, becomes a problem when trying to insert data in SQL Server using WCF-SQL.

For instance if the server is setup to use Dutch regional settings, the decimal number is separated by (,) comma. When you try to insert a data for instance 10.001, it becomes 10001. To fix the problem, you need to change the regional settings of the service account wherein the host instance is running.

Basically there are two things you can do.

One is to logon the account -> Go to regional settings -> Change the number formatting.

Now, if it’s impossible to login the account, you can fix it by changing the registry settings, for this you need the SID of the user account.

Updating Regional settings of an account using registry:

1. Open Regedit.

2. To get the SID, navigate to HKLM\SOFTWARE\Microsoft\Windows NT\ProfileList

Browse to every folder below and using the value in ProfileImagePath, you can determine the correct user account.

Then use the SId of the folder.

3. Once you have the GUID, browse to: HKEY_USERS\<SID in step 2>\Control Panel\International

Change the string values, for Decimal, change the sDecimal value.

 

BTDF: System.OutOfMemoryException while deploying using Powershell Remoting

Recently when I tried to deploy a BizTalk solution packaged with BTDF (BizTalk Deployment Framework) in combination with Powershell Remoting I encountered this error:

Error: Failed to add resource(s).

Change requests failed for some resources.

BizTalkAssemblyResourceManager failed to complete end type change request.

Exception of type ‘System.OutOfMemoryException’ was thrown.

 

I checked the memory on the remote server and even restarted it but it didn’t help, I still encounter this error.

As it turns out, as well as I’ve suspected it’s the memory of the powershell. To increase the size of the memory, run the PowerShell Command prompt on the target server and enter the ff:

Set-Item WSMan:\localhost\Shell\MaxMemoryPerShellMB 512

Or set it even to higher.