@Murat Menteşe As your xml doc having array [] in it and i'm not sure how to write matching xslt. As the current xslt converts the array xml into object/element and adding "" for array[]. In case of large data you have to increase the Maximum Buffer Size 1 MB //increase based on your flowfile size as this processor works takes the whole flowfile into memory and does all replacing based on our configs. ... View more