POS not showing offline data jobs

In Dynamics 365 the offline story on the MPOS has been significantly improved since AX 2012. Now it’s more or less a click on the register in Dyn365, install the POS and distribute data. A bit simplified approach to life but anyways.

Here’s something I’ve seen a couple of times now. There’s just no jobs and nothing to process …No offline jobs

The event log gives it away a bit:

Failed to get offline sync data in offline database due to Exception. Error Details: Data Source=localhost\SQLEXPRESS;Initial Catalog=RetailOfflineDatabase;Integrated Security=True;Persist Security Info=False;Pooling=True;Encrypt=True;TrustServerCertificate=True

offline error 1

And in the details it’s clear that we’re facing a rights issue here. But in SQL Express with no management tools on the POS machine we don’t have many configuration options and even less when we’re in a setup with a large number of registers.

All you need to do is add the user logged in to Windows to these two groups on the local machine:

User groups

Log off and on again to activate the changes. Start your POS and check the database connection status. Hopefully, you should see a lot of jobs now:

Offline jobs

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Uninstall MPOS – “Mordern POS exists for other users on this computer”

While testing MPOS changes I had to do an uninstall on my laptop. But every time I tried to uninstall it told me that there was an error and it couldn’t complete the uninstall and that I should contact the administrator.

And then it reappeared in the list of installed apps.

Trying to run the Uninstall-RetailModernPOS.ps1 gave a hint of what’s wrong:

uninstall MPOS.PNG

You’ll usually find the script around here:

C:\Program Files (x86)\Microsoft Dynamics 365\70\Retail Modern POS\Tools\

There might be some clever way of fixing this, but in order to move forward I did a quick’n’dirty and not recommended way of fixing it:

Remove the check …

Edit the script by commenting out this line:

Comment quick fix.PNG

This is not recommended and definitely not in a production environment and I do not take any responsibility for any undesired outcome of this. But it did the trick for getting me forward.

Please note, that this doesn’t take away the error. So when you uninstall the next time it’ll still throw the error at you until you once again remove the check.

Why my product images doesn’t show up on my eCommerce site

So here’s the scenario. We’ve got the POS running and the eCommerce site too; but somethings wrong with the product images. They’re not showing up on the eCommerce site. No matter how many times we restart the IIS and change the images on the media server. The thing is that the eCommerce site doesn’t pull the images from the media server. At least not for the products, that is.

So looking at these sunglasses we get the image of the sunglasses as expected:1 POS product image.png

Looking at the media server path here’s the image:

2 Image file on media server.png

Now we add a new image to the media server like this:

3 New image on media server.png

It’s ok to go “aaaawwww”…

Looking at the POS it picks up the change pretty fast and shows us two images:

4 New image on POS.png

If we go the the eCom site not much happens:

5 Image not shown on eCom.png

You can restart the IIS all that you want, it won’t change.

Here’s the explanation:

6_Folder_difference.png

The eCom site looks for the files in another folder than the POS. This opens up for having different levels of image resolution and so on, but that is another story.

So if we copy the image files to the Retail Storefront folder we might be out of the woods … but not quite.We still only see the old image on the site, thanks to caching.

Clear your browsers image cache and bingo: another moment of aaaawwwwww:

8 New image shown on eCom.png

This all might be documented somewhere … I just didn’t find it.

Database error during POS activation

For some reason – still to be discovered – I once in a while get a number sequence error while activating a POS.

getting last number sequence failed

It’s not super informative but going through the event log we find this:

An exception of type: 'Microsoft.Dynamics.Commerce.Runtime.StorageException' occurred while executing Microsoft.Dynamics.Commerce.Runtime.Messages.StartSessionRequest request by Microsoft.Dynamics.Commerce.Runtime.Workflow.Security.StartSessionRequestHandler. Error resource id: 'Microsoft_Dynamics_Commerce_Runtime_CriticalStorageError', Exception: Microsoft.Dynamics.Commerce.Runtime.StorageException: Failed to read from the database. See inner exception for details

DatabaseErrorCode: 0 ---> Microsoft.Dynamics.Commerce.Runtime.Data.DatabaseException: Violation of PRIMARY KEY constraint 'I_-1558077251_-1679712867'. Cannot insert duplicate key in object 'ax.RETAILTRANSACTIONTABLE'. The duplicate key value is (<removed by me to anonymize the data>).

The statement has been terminated. ---> System.Data.SqlClient.SqlException: Violation of PRIMARY KEY constraint 'I_-1558077251_-1679712867'. Cannot insert duplicate key in object 'ax.RETAILTRANSACTIONTABLE'. The duplicate key value is (<removed by me to anonymize the data>).

The statement has been terminated.

   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)

   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)

   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)

   at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()

   at System.Data.SqlClient.SqlDataReader.get_MetaData()

   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)

   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds, Boolean describeParameterEncryptionRequest)

   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)

   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)

   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)

   at System.Data.SqlClient.SqlCommand.ExecuteReader()

   at Microsoft.Dynamics.Commerce.Runtime.DataAccess.SqlServer.SqlServerDatabaseProvider.ExecuteStoredProcedure(IDatabaseConnection connection, String procedureName, IEnumerable`1 parameters, IDictionary`2 outputParameters, Action`1 resultCallback, Nullable`1& storeProcedureResultValue)

   --- End of inner exception stack trace ---

   at Microsoft.Dynamics.Commerce.Runtime.DataAccess.SqlServer.SqlTypeHelper.HandleException(SqlException sqlException)

   at Microsoft.Dynamics.Commerce.Runtime.DataAccess.SqlServer.SqlServerDatabaseProvider.ExecuteStoredProcedure(IDatabaseConnection connection, String procedureName, IEnumerable`1 parameters, IDictionary`2 outputParameters, Action`1 resultCallback, Nullable`1& storeProcedureResultValue)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.SqlServerDatabaseContext.<>c__DisplayClass15_0.<ExecuteStoredProcedure>b__0()

   at Microsoft.Dynamics.Commerce.Runtime.Framework.RetryPolicy.<>c__DisplayClass13_0.<ExecuteAction>b__0()

   at Microsoft.Dynamics.Commerce.Runtime.Framework.RetryPolicy.ExecuteAction[TResult](Func`1 func, Action`3 onTransientError)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.SqlServerDatabaseContext.ExecuteStoredProcedure(String procedureName, ParameterSet parameters, ParameterSet outputParameters, Action`1 resultCallback, Int32& returnValue)

   --- End of inner exception stack trace ---

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.SqlServerDatabaseContext.ExecuteStoredProcedure(String procedureName, ParameterSet parameters, ParameterSet outputParameters, Action`1 resultCallback, Int32& returnValue)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.SqlServerDatabaseContext.ExecuteStoredProcedureScalar(String procedureName, ParameterSet parameters, ParameterSet outputParameters)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.TransactionLogSqlServerDataService.Save(RequestContext context, Int64 channelId, DataTable dataTable)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.TransactionLogSqlServerDataService.Save(SaveTransactionLogDataRequest request)

   at Microsoft.Dynamics.Commerce.Runtime.DataServices.SqlServer.TransactionLogSqlServerDataService.Execute(Request request)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context, IRequestHandler handler, Boolean skipRequestTriggers)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context, IRequestHandler handler)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context)

   at Microsoft.Dynamics.Commerce.Runtime.Services.TransactionLogService.SaveTransactionLog(SaveTransactionLogServiceRequest request)

   at Microsoft.Dynamics.Commerce.Runtime.Services.TransactionLogService.Execute(Request request)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context, IRequestHandler handler, Boolean skipRequestTriggers)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context, IRequestHandler handler)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context)

   at Microsoft.Dynamics.Commerce.Runtime.Workflow.AuthenticationHelper.LogTransaction(RequestContext context, TransactionType transactionType, String transactionId)

   at Microsoft.Dynamics.Commerce.Runtime.Workflow.Security.StartSessionRequestHandler.Process(StartSessionRequest request)

   at Microsoft.Dynamics.Commerce.Runtime.SingleRequestHandler`2.Execute(Request request)

   at Microsoft.Dynamics.Commerce.Runtime.CommerceRuntime.Execute[TResponse](Request request, RequestContext context, IRequestHandler handler, Boolean skipRequestTriggers).

 

So the problem/symptom is centred around RetailTransactionTable. I haven’t found the actual source of the problem and what I’m suggesting as quick’n’dirty fix is not to be used in a live environment or anywhere else but sandboxes where it won’t affect anything close to live data.

I create a new query on the SQL server running the retail server database and use the following TSQL to rename a transaction id:

update [AxDB].[ax].[RETAILTRANSACTIONTABLE]
set TRANSACTIONID = '<transactionid_found_in_event_log + something else like a B>'
 where TRANSACTIONID = '<transactionid_found_in_event_log>'

After that the retry button brings you back on track and the activation can continue:

Activation success

As said, it ain’t pretty and I do not suggest this as a solution to be used anywhere. But it will get you passed that error. There’s probably a better solution and maybe a root source, but until then …

Oh, and I do not take any responsibility of bad things coming out of this … 😉

Using hardware station from Windows Phone MPOS

Microsoft released the MPOS for Windows Phone a while ago and although a bit rough to install it works very well.

Next step was to get it to work with my wireless receipt printer through a hardware station. As you might now the connection to a hardware station can be tested through the url https://<MyHardwareStationAddress&gt;:<port>/hardwarestation/ping. And as expected it didn’t work right away since I hadn’t installed the certificate on my phone.

I figured that it couldn’t be that hard, but since you are reading this you might have guessed that it wasn’t all that easy.

I had earlier on exported the certificate on my hardware station as a .pfx file and used that with success. But that wasn’t the case on the phone. I imported the .pfx file and used the Certificate app to see the status of the certificate.

I knew the certificate was working on other POS machines but here it wouldn’t accept it as valid:

certificate-not-working

After consulting google for a while I read that people had solved issues like this by using .cer exports instead, but that didn’t solve anything for me.

What I ended up doing was exporting it as .p7b. Only thing is that if checked the “Include all certificates in the certification path if possible” I still had a non valid certificate on the phone. So I exported it like this:

export-certificate

And now I have a working certificate:

certificate-working

Actually I think that it is more than just Okay; but anyhow …

The hardware station was now allowing pairing and selecting:

hardware-station-paired

 

Retail operations and user rights

In this post I will do a quick explanation of the user rights setup of the retail POS operations.

Operations is referring to the different actions available in the POS. They are listed in Retail and commerce/Channel setup/POS setup/POS/Operations. Each operation has the following information:

Operation id and Operation name identifies the operation.

Permission ID 1 and Permission ID 2: These permissions can be a required level of rights needed for the operation.

Check user access: If not set the operation does not require the user to have the required access.

User operation: If not set you cannot create a button on the POS for that operation. Notice that the form by default has a filter on that field requiring the field to be set true.

Confused? Let’s have a look at an example.

We are going to focus on the void product operation using worker 000120 (Andrew Lan) and 000110 (Dan Park). Dan is allowed to void transactions:

danp-pos-permissions

Andrew is not:

andrewl-pos-permissions

Scenario 1:

Check user rights = true

Permission IDs = 0

Andrew tries to do a void:

void-transaction-not-allowed

Since Andrew has limited rights he cannot void the transaction.

 

Scenario 2:

Check user rights = false

Permission IDs = 0

In this case the POS doesn’t care what about permissions when voiding transactions so it allows Andrew to void:

void-transaction-prompt

 

Scenario 3

Check user rights = false

Permission IDs = 1001 (Allow transaction voiding)

Like in scenario 2 the POS still doesn’t care about user rights so it allows Andrew to void the transaction:

void-transaction-prompt

Scenario 4

Check user rights = true

Permission IDs = 1001 (Allow transaction voiding)

The user rights are validated again and since Andrew isn’t allowed voiding he can’t do the void. But now we have added the feature that Andrew can call in his manager or anyone else with enough rights to allow transaction voiding:

cannot-void

In this case he gets Dan to type in his id and password and this opens up for voiding the transaction:

void-transaction-prompt