Format number with the thousand separator in auto format mode

[t_donnet]

Hi,

The client customise the abbreviation for big numbers, but want the exact value when it's under a million (with thousand separator).
The KPI chart doesn't display correctly the value. 

In the main script, the variables are on the ThousandSep & the NumericalAbbreviation.

SET ThousandSep="'";
SET DecimalSep='.';
SET MoneyThousandSep="'";
SET MoneyDecimalSep='.';
SET MoneyFormat='# ##0.00 CHF;-# ##0.00 CHF';
SET TimeFormat='hh:mm:ss';
SET DateFormat='DD.MM.YYYY';
SET TimestampFormat='DD.MM.YYYY hh:mm:ss[.fff]';
SET FirstWeekDay=0;
SET BrokenWeeks=0;
SET ReferenceDay=4;
SET FirstMonthOfYear=1;
SET CollationLocale='fr-CH';
SET CreateSearchIndexOnReload=1;
SET MonthNames='janv.;févr.;mars;avr.;mai;juin;juil.;août;sept.;oct.;nov.;déc.';
SET LongMonthNames='janvier;février;mars;avril;mai;juin;juillet;août;septembre;octobre;novembre;décembre';
SET DayNames='lun.;mar.;mer.;jeu.;ven.;sam.;dim.';
SET LongDayNames='lundi;mardi;mercredi;jeudi;vendredi;samedi;dimanche';
SET NumericalAbbreviation='6:mio;9:mia;12:T;15:P;18:E;21:Z;24:Y;-3:m;-6:μ;-9:n;-12:p;-15:f;-18:a;-21:z;-24:y';
//SET NumericalAbbreviation='3:k;6:M;9:bn;12:T;15:P;18:E;21:Z;24:Y;-3:m;-6:μ;-9:n;-12:p;-15:f;-18:a;-21:z;-24:y';

When the number format is set to Number. The value is display with the thousand separator
No problem here

When the number format is set to Auto. The value is displays with the abbreviation (more than 1 million)This is correct

When the number format is set to Auto. The value is displays with the abbreviation (less than 1 million, no abbreviation)

No thousand separator

Any ideas to this 'problem'? or a way to fix it? 
Thanks for your help.

Regards,
Théo