Debugging without a startup project or startup Object in D365

To debug without setting up a startup project and startup object in D365 fotr operations. Follow these steps:

  1. Open your object in visual studio
  2. Place breakpoints
  3. Goto Debug>attach to process and check show processes from all users
  4. Select w3wp.exe and click attach.


You can execute your process now from the client and execution will be stopped at your breakpoints.


Breakpoint symbols not loading AX7/D365

Recently faced a problem where my breakpoints weren’t loading for objects in the AOT that were not in my solution and therefore I could not debug.

Solution: In order to load symbols for objects that have not been included in your solution you have to uncheck the following check box.

Dynamincs365>Options>Dynamics 365>Debugging
Load symbols only for items in the solution


To know more about how to debug in D365 visit: Debug X++

How to Recall/Cancel a workflow through code in AX 2012

To recall a workflow through code you can use the cancelworkflow method in workflow class. It takes the correlationId and a comment as parameters and gets the job done for you. Example

workflow::cancelworkflow(CorrelationId, “Cancelling this workflow”)

Now you are probably thinking How do I find my workflows CorrelationId. You can do that by querying WorkflowTrackingStatusTable sorting it with time and instance number and joining it with SysWorkflowtable against the correlationId field and in the contextId you pass the RecId of your record for example PO RecId.

Fix for Error: Field ‘Company’ and ‘Lot ID’ must be filled in”

When editing a PO line for procurement category you receive Field ‘Company’ and ‘Lot ID’ must be filled in” error. This usually happens when you have brought in the PO line through some form of integration either AIF, excel plugin etc.

This error has also been seen on salesLine and there is a hotfix(KB 2756645) for when it happens on salesline.



There is no record in PurchLineForeignTradeCategory table related to PO line added.



Create a record against the PO line causing this error in the PurchLineFroeignTradeCategory table in your integration and you will see the error disappear.

Difference between Refresh(), Reread(), Research() and ExecuteQuery() in AX 2012

In X++ we have the below methods for fetching data after any changes are made, below is the short description of what they are and when to use each one.

Refresh() refreshes the user view with whats stored in the caches. This does not touch the DB.
Use this after any form change has been made through code.

ReRead() fetches only the current record from database and does not re read the complete datasource.
Use this when you need to update only the current record after modifying any value.

ReSearch() will execute the same query again and fetch the results from the database.
Use this if you need to get the current most data from database.

ExecuteQuery() will run the query again just like research does but it will also take any query changes into account.
Use this is you have modified the query on run-time and need the updated results according to the new query.

Connecting to an External Database from AX 2012 using ODBC

To connect to an external database with X++ you can use Open Database Connection (ODBC) protocol through the OdbcConnection class among other ways. This approaches requires you to setup us a Data Source Name(DSN) on your server machine with the required access. Below is the code sample for how you can achieve this.To read more about this visit MSDN.


// X++, Main method in a class.
static public void Main(Args _args)
    LoginProperty loginProperty;
    OdbcConnection odbcConnection;
    Statement statement;
    ResultSet resultSet;
    str sql, criteria;
    SqlStatementExecutePermission perm;

    // Set the information on the ODBC.
    loginProperty = new LoginProperty();

    //Create a connection to external database.
    odbcConnection = new OdbcConnection(loginProperty);

    if (odbcConnection)
            + criteria
            + " ORDER BY FIELD1, FIELD2 ASC ;";

        //Assert permission for executing the sql string.
        perm = new SqlStatementExecutePermission(sql);

        //Prepare the sql statement.
        statement = odbcConnection.createStatement();
        resultSet = statement.executeQuery(sql);

        //Cause the sql statement to run,
        //then loop through each row in the result.
        while (
            //It is not possible to get field 3 and then 1.
            //Always get fields in numerical order, such as 1 then 2 the 3 etc.
            print resultSet.getString(1);
            print resultSet.getString(3);

        //Close the connection.
        error("Failed to log on to the database through ODBC.");

Connecting to an External Database from AX 2012 using SqlClient classes

Here is how you can connect to an external database using X++ SqlClient class. This is among the few others approaches you can connect to an external database.

public System.Data.SqlClient.SqlConnection getConnection()
str connectionString;

System.Exception exception;
System.Data.SqlClient.SqlConnection connection;

connectionString = “Persist Security Info=False;User ID=UserID;Pwd=Password;Initial Catalog=DatabaseName;Data Source=localhost;”;

connection = new System.Data.SqlClient.SqlConnection(connectionString);

return connection;
catch (Exception::Error)
error(“An exception has occurred.”);
catch (Exception::CLRError)
error(“A CLR exception has occurred.”);

exception = CLRInterop::getLastException();

if (exception != null)

return null;

To run a query after a successful connection, use this code:

System.Data.SqlClient.SqlConnection conn;
System.Data.SqlClient.SqlCommand cmd;
System.Data.SqlClient.SqlDataAdapter da;
System.Data.SqlClient.SqlDataReader dr;
System.Exception netExcepn;

str sql, attributeName, attributeValue;
str 30 materialCode;

mzkConnectToDB = new MzkConnectToDB();
conn = mzkConnectToMSDgen.getConnection();

sql = strFmt(“select * from tablename;”);
cmd = new System.Data.SqlClient.SqlCommand(sql,conn);

dr = cmd.ExecuteReader();

materialCode = dr.get_Item(‘material_id’);


//Close the connection.