HP Guardian Errors Manual page 229

Effect The procedure sets the error code and returns without performing the requested operation.
Recovery Correct the format or the data list.
273 BAD FORMAT
Cause The format contains an edit descriptor that is valid for output but not for input. For example,
I5.5 is invalid for input.
Effect The procedure sets the error code and returns without performing the requested operation.
Recovery Correct the format.
274 NUMERIC OVERFLOW
Cause A data element's numeric value was so small or so large that FORMATDATA[X] could not
place it in its corresponding data element.
Effect The procedure sets the error code and returns without performing the requested operation.
Recovery Change the format or correct the numeric calculations.
Error Codes 229