How to query in eScript for old records

bcAccount.SetSearchExpr("[Type] <> 'Residential' AND [Created] < (Today()-daysvar)");

where daysvar can have any value.

Getting below error :

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Siebel

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[1] The query expression on field 'Created' is not valid. Please revise and try again.(SBL-DAT-00399)

[2] CSSUtcDateTime doesn't support operator '<' with 'CSSInteger'(SBL-DAT-00480)

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OK

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How to solve this ?

[19-Dec-2014]: I can query successfully when i use Today()-100 i.e. by hardcoding. 'Created' is a system field, not required to be exposed on UI for my requirement. My requirement is simply to query for Account records which are more than a year or 'daysvar' no.of days(configurable).