| WrongInstrument | error |
| | qpbselect only works with EPIC-pn data |
| WrongInstSubmode | error |
| | qpbselect can only be used in Full Frame Mode |
| "NoExposureTime" | error |
| | input science product does not contain the EXPOSURE keyword in its header |
| "NoDLMEAN" | error |
| | input science product does not contain the DLMEAN keyword in its header |
| "NoExpression" | error |
| | input science product does not contain the SLCTEXPR keyword in its header |
| "CantMakeQPBProduct" | error |
| | Failed to make QPB output product |
| SubmodeCheckingDisabled | warning |
| | This should be only used for testing purposes.
corrective action: This warning only appears if parameter overwritesubmode is enabled. |