Create Number Sequence on AX 2012 R3

public static void Create(
NumberSequenceCode  _numSeqCode,
Name    _txt,
NumberSequenceRange _highest,
NumberSequenceRange _lowest,
NumberSequenceRange _nextRec,
Name    _prefix,
Name    _format,
str 1 _manual,
str 1 _cont,
Name    _numSeqScopeStr
)
{
    NumberSequenceTable numberSeqTable;
    NumberSequenceScope numberSeqScope;
    NumberSequenceReference numberSeqRef;
    RefRecId _numSeqScopeR,_numSeqIdR;
    container   segments, segmentReset;
    str annotatedFormat, format;
    ;
    _nextRec =1;
    select firstonly * from numberSeqScope where numberSeqScope.DataArea == _numSeqScopeStr;
    _numSeqScopeR = numberSeqScope.RecId;

    if(!NumberSequenceTable::findByNaturalKey(_numSeqCode,_numSeqScopeR))
    {
        ttsBegin;
        numberSeqTable.clear();
        numberSeqTable.NumberSequence   = _numSeqCode;
        numberSeqTable.Txt              = _txt;
        numberSeqTable.Highest          = _highest;
        numberSeqTable.Lowest           = _lowest;
        numberSeqTable.NextRec          = _nextRec;

        if(_manual == 'Y')
        { numberSeqTable.Manual           =  NoYes::Yes; }

        if(_cont == 'Y')
        { numberSeqTable.Continuous       =  NoYes::Yes; }

        segments = segmentReset;
        //segments += [[-1, conPeek(rec, 8)]];// 0 company, -1 constant, -2 alphanumeric
        if(_prefix)
        { segments += [[-1, _prefix]]; }
        segments += [[-2, _format]];

        annotatedFormat  = NumberSeq::createAnnotatedFormatFromSegments(segments);
        format           = NumberSeq::createAnnotatedFormatFromSegments(segments, false);
        numberSeqTable.AnnotatedFormat      = annotatedFormat;
        numberSeqTable.Format               = format;
        numberSeqTable.NumberSequenceScope  = _numSeqScopeR;
        numberSeqTable.validateWrite();
        numberSeqTable.insert();
        ttsCommit;
    }
}