This is the actual code I am trying to run. Now, I have filled the previously commented fields with the binary zeroes or hex zeroes. Below are the changes I have made in the code. But the same problem persists. It’s the same, CPF9DDB in err2 parameter of QC3ENCDT API. What else do U suggest I should do? Thanks..

    05 RESERVED               PIC X(1) VALUE X'00'.     

    05 RESERVED           PIC X(1) VALUE X'00'.                   

    05 SCA                PIC 9(8) USAGE BINARY VALUE ZEROES.     

    05 RESERVED           PIC X(3) VALUE X'000000'.   

    05 RESERVED           PIC X(1) VALUE X'00'.       

 *   05 RESERVED           PIC X(3).

For KEYD0200, that can’t be commented out. “Reserved” areas need to be filled with binary zeros. In the case of this area, 3 bytes of hexadecimal zeros will work.

There are other fields that you also have commented out that need to be included. It’s not clear if you are showing example code or actual code that throws the error. Fill in the rest of your structures and see what changes.

Tom