STACK_BLOCK_ILLEGAL_STATE inside LOOP

[Former Member]

At the end of the loop

LOOP AT lt_partners INTO ls_partner.

   SELECT SINGLE COUNT(*) INTO counter FROM DFKKBPTAXNUM

     WHERE partner = ls_partner-partner AND taxtype = 'RU1'

     GROUP BY TAXNUM.

ENDLOOP.

I encounter dynamical error STACK_BLOCK_ILLEGAL_STATE. I suppose the reason is using ls_partner-partner inside the select statement. Changing select statement to

SELECT SINGLE COUNT(*) INTO counter FROM DFKKBPTAXNUM

elemenates a stack dump. Could you please suggest the reason for such a behavior?

[kesavadas_thekkillath]

Please refer sap note

Note 1489228 - STACK_BLOCK_ILLEGAL_STATE for ENDSELECT and count( * )