Dear,
Sorry for late replying on this .
Have you solved your problem ? If not please share screen shot of in which transaction ,the system is giving that problem .
Now coming to the point the point about tax is ,we should have to maintain Tax details for all materials except Text Items only .
So is there any solution to hit the tax to only to specific Material Type = LEIH, or else we have to update our full master data .
No,you have to update tax details in master data in MM01 as that materiel type ( specifically for that Material Code only ) is relevant or not.
If you have any doubts please let me know .
Dead Man