The second problem, absence of data within a particular record type, might be a CMF data error or a user interpretation error. Because many of the fields collected by CMF are optional, you can exclude the data from a particular record. CICS PA issues a message indicating that the field is Missing from the record. Although this is not a severe error, the report might not provide an accurate account of the data. This is especially true on Summary reports. If a data field in the summation is missing for any part of the summarization interval, then the field is marked Missing.