AS/400: How to throw error to user when inserting blank in numeric field

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AS/400
In Numeric field if user enter blank then system interprets it as zero. Say 1xxx1 is interpreted as 1001 where "X" is blank. I used Valnum keyword along with Check(RZ) to handle the same but getting "Invalid Character sequence in numeric only field" error. I want to show user specific error in place of that. Please suggest how to handle these kind of error.
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In your example you want 3 x’s replaced with 2 0’s ? It’s not a good idea to allow the blanks because of inconsistency. If this field is not allowed to have blank values, why not make it a numeric field? I have found that when you are allowing users that kind of flexibility in a field there is always a data integrity issue. 

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  • WoodEngineer
    Could you use a MONITOR / EndMon around the EXFMT which generates the error? If so, you could then trap the error and send the user the message you wish.
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  • azohawk
    My experience only leading and trailing blanks get interpreted as zeros, leaving a blank between two valid digits in a numeric will throw an error by the system.
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  • Splat
    No string with blanks embedded between digits will be seen by the iSeries as a numeric field.

    If, for some reason, you want the users to be able to enter invalid data so as to allow you to return a specific message you'll have to define the input field as character.  You would then need to validate the contents of the field within the program.  

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  • ToddN2000
    There may be a better solution. What is actually keyed into this field and how is it being used / stored for starters. Is this field strictly numeric or alphanumeric? What error message do you want and on what conditions?
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