Error: SERVER ignored previous N messages (server busy)

Solution: This is an informational message (not an error) that does not affect performance. The message may occur when the Unica Campaign listener (unica_aclsnr) process is communicating with the Unica Campaign server (unica_acsvr) process and the server process is not replying. The server process may not be replying because it is either waiting for a database transaction to complete or it is performing a process such as calculating a macro or a derived field.

You can eliminate these messages from the log file by deselecting Information in the logging options for the flowchart.