I found the problem. The UNA Segment was not correct. It should be <S_UNA>:+.? '</S_UNA> but I had only <S_UNA>:+.?</S_UNA>
After correcting this, the message went through.
I found the problem. The UNA Segment was not correct. It should be <S_UNA>:+.? '</S_UNA> but I had only <S_UNA>:+.?</S_UNA>
After correcting this, the message went through.