After completion of the @DISCON function, the ERRSTAT field in the IDMS communications block indicates the outcome of the operation. The following is a list of the acceptable status codes for this function and their corresponding meaning:
Currency has not been established for the named record.
The named record is not in the subschema. The program has probably invoked the wrong subschema.
The specified record's area has not been readied in one of the three update usage modes.
The subschema specifies an access restriction that prohibits use of the @DISCON statement.
The @DISCON statement cannot be executed because the specified record has been defined as a mandatory member of the set.
An area other than the area of the specified record has been readied with an incorrect usage mode.
The specified record is not currently a member of the specified set.
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