Use prompt message to add new data to spreadsheet file

I have built a small search engine over a spreadsheet file that represents a virtual library. The initial data is filtered to an 2D as illustrated in (figure 1). If by chance I am searching for a book that's missing in the data set, it is used a prompt message subvi that gives freedom to create a new entry for the data set, in this case a new book (figure 2).

The original csv/txt file is changed in this part of the program. My issue is that althought this new book appears in a good fashion at the end of the file (figure 3), it is not recognized by the search engine itself (that's the meaning of the message appearing in the last picture in portuguese).

I tried already several ways to convert data from the bundled prompt message to the write to spreadsheet function, with no success. Figure 4 shows the kind of techiques I am trying to apply, form a direct prompt message-> build array-> write to spreadsheet toiInserting formating data functions, this case str to byte and byte to str, and using array to spreadsheet string and spreadsheet string to array.

believe it has something to do with this prompt message function, but also I may be overlooking something fundamental about data formating between different softwares. Any insight into this issue welcome, and thank you for your time!