Error from PS_INTNR on oData service.

Hello guys, According to my project I have 2 entitysets and they have properties like PS_INTNR.

When I get data from these entities, there is no problem with another properties (like aufnr,post1,verko) but on PS_INTNR (PROJ-PSPNR) its not coming truely.

Zzproje 0 Edm.String 0 0 24 0 0 0 0 0 ZZPROJE Associated Type  PS_INTNR

For ex:

<d:Zzproje>000000000000000000000000</d:Zzproje>

<d:Objnr>PD00000009</d:Objnr>

But my zzproje (PS_INTNR ) should come 00000009.

On debug no problem with my -zzproje because i can show that its value is 00000009 but on XML not.

I wrote code for conversion like this:   

DATA: i_proje  TYPE proj-pspnr.

CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'            

EXPORTING                   input  = <lf_entityset>-pspnr            

IMPORTING                   output = i_proje.

<lf_entityset>-pspnr = i_proje

But i'm supposed that its not true and <lf_entityset>-pspnr should'nt be like nchar. Could you please help me how can I fix that?

Thank you for all answers,

Ogulcan G.