Which label are you using? Did you replace the LECTURE label, as the LECTURE label is called during the export. I have used this in all my SPE and it works fine for both the screen and the export (remember to use columns on your file if you looping over large datasets), something like this:

$LECTURE

Gosub LECTURE From CNS*****

[V]GPE = 1

# MY CODE HERE

Return

Hi Regard, 

I am using the LECTURE Label as you described a head but I the field showed blank in Excel Global Export.

$LECTURE
If !clalev([M:NAT2]) Then
End
Endif
Local Integer I

Gosub LECTURE From CNSNATSTD
GPE = 1

#My spe
For I = 0 To [M:NAT2]NBLIG-1
[M:NAT2]ZGACC(I) = [M:NAT2]ACC(I)-"-"-func AFNC.TEXTRA('GACCOUNT', 'DESTRA', [M:NAT1]LED,[M:NAT2]ACC(I) )

Next
Affzo [M:NAT2]ZGACC
Return

It works fine on the screen, but to export it globally it's showen as blanks

Thank you for your help

Hi Denise, 

Did you find a solution ? I have the same problem now

Unfortunately I haven't found a solution.

Try populating the field using a Before Field action and not using the LECTURE label

Hi Damian/Denise, my team has tried both Before Field and LECTURE label. Neither worked :(
Do you have any other solution?

Depending on the inquiry, some have defined entry points within them. If that is the case, make use of the entry point rather than SPE to populate the custom fields. 

LECTURE works fine, you have to use NOL instead of [M:...]NBLIG

As MARCOW wrote, the error is here:

For I = 0 To [M:NAT2]NBLIG-1

it should be 

For I = 0 To NOL

and it works fine also in the global export

Regards,