When you specify detailed exception logging, the error log's Error Message column shows the error message that corresponds to the exception and a concatenation of the error messages from each of the nested exceptions. The format of these messages is as follows:

In addition to the standard error message text that Integration Server provides (for example, "[ISS.0062.9021] "object" is null"), exception messages may also contain additional, customized text that a service developer provides in the error handling portion of the service.