is this really what you get: TD 600 Text *ID* Language not found
or did you just type *ID* to hide the right value?
I mean, a short text does not have a text id, a short text is just a table field in EKPO, a long text has a text ID is stored in STXH/STXL
is your sy-langu equal to the vendors communication language (LFA1-SPRAS) ?