Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, CANBRKWAT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 cancel it and set a watchpoint if that is what was intended

    Facility: DEBUG, VMS Debugger

    Explanation: If you intended to get notified when the specified
    location was modified rather than executed, then a watchpoint
    should have been set rather than a breakpoint.

    User Action: If a watchpoint was intended, then cancel the
    breakpoint and set a watchpoint.