Abstract: A recording medium stores a monitoring program that cause a computer to execute processes including: determining a learning range, used in learning of messages, for each of monitoring target systems based on time-series information of each of past message groups and on keyword information that suggests a forwarding destination; generating a learning model, used to infer information on the forwarding destination, by using the determined learning range as a parameter and by using the time-series information, the information on the forwarding destination, and the keyword information included in each of the messages in the case where the message is the error message as training data; and selecting the learning model to be applied to the new system based on a degree of similarity between the keyword information used in the learning of each of the monitoring target systems and the keyword information of the error message of the new system.