InetLab

When i try to use the next tag :
.AddParameter(0x204, "zz");
i get error : ESME_RINVPARLEN:194
if i will do the same with only "z"
.AddParameter(0x204, "z");
all works ok.
the provider has tested it from his side and i see all ok in the wireshark (you can see 0x04d2 was passed as value):

link to image : https://imgur.com/a/hAMG86E
what do i miss here?

i added a comparisong in the picture you can see when i try to pass "zz" the length is 1 which is not corect
https://imgur.com/a/1fPIQEH