Code changes done in standard methods of RetailTransactionService* classes or added new methods in RetailTransactionServiceEx class are not 'visible' by Real-Time Service.
This blog post will show you the way to change color of DevExpress button of class SimpleButton.
Offline Sync service fails to synchronize data with error "Bulk command BulkInsertCommand failed with the following exception. Rows will be retried during single apply. System.Data.SqlClient.SqlException (0x80131904): String or binary data would be truncated."
When trying to start MPOS client project in Debug mode, error "Unable to start debugging..." is thrown by Visual Studio.
MPOS fails to access Retail Transaction Service with error 'A Business Connector session already exists'.