Code changes done in standard methods of RetailTransactionService* classes or added new methods in RetailTransactionServiceEx class are not 'visible' by Real-Time Service.
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."
MPOS fails to access Retail Transaction Service with error 'A Business Connector session already exists'.
This blog post will show one more way to unblock POS DLL files.
Async server fails to sync metadata with error Cannot have multiple records in schedule parameter table.