Monks, I'm trying to use the sample script of sendmessage.pl to send a multipart message to multiple recipients by replacing "submit_sm" with "submit_multi". I could only see one part i.e the first part being delivered and then the server gives an error "error_status_code must be supplied at smsc.pl line 96". And it fails after that. Following is the code I'm using please go through and guide me through.

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use Net::SMPP;
use Data::Dumper;

$trace = 1;
$Net::SMPP::trace = 1;
$sysid = "";
$pw = "";
$host = $host;
$port = 2775;
$facil = 0x00010003;  # NF_PDC | GF_PVCY
my $mymsg = join (" ", @ARGV);
my $multimsg = 0;
if (length ($mymsg) > 128) {
    $multimsg = 1;
}

$vers = 0x40;  #4
$if_vers = 0x00;

### Connect and bind

($smpp, $resp) = Net::SMPP->new_transmitter($host,
               smpp_version => $vers,
               interface_version => $if_vers,
               system_id => $sysid,
               password => $pw,
               addr_ton => 0x09,
               addr_npi => 0x00,
               source_addr_ton => 0x09,
               source_addr_npi => 0x00,
               dest_addr_ton => 0x09,
               dest_addr_npi => 0x00,
               system_type => '_001',
               facilities_mask => $facil,
               port => $port,
               )
    or die "Can't contact server: $!";

###
### Typical session in synchronous mode
###

warn "Sending submit_sm";

$sent_no = 0;
$origref = $ref = 160;
$textptr = 0;
$finished = 0;

#print "FELIX: Now checking length of string: ".length ($mymsg)."\n";
if (length ($mymsg) > 128) {
    $multimsg_maxparts = int (length ($mymsg) / 128);
    if (length ($mymsg) % 128) {
    $multimsg_maxparts++;
    }
    $multimsg_curpart = 1;
    print "multimsgsparts: $multimsg_maxparts\n";
}
$msgtext = substr ($mymsg, 0, 128, "");
while (length ($msgtext)) {

    ### See V4, p. 77

    if ($multimsg_curpart) {
    $multimsg = pack ("nCC", $origref, $multimsg_curpart, $multimsg_ma
+xparts);
    printf STDERR "\nI AM SETTING MULTIPART: len=%d\n", multimsg;
    } else {
    $multimsg = undef;
    }
    printf "Now sending: (multimsg = %.8x) (len: %d) %s\n", $multimsg,
+ length ($msgtext), $msgtext;
    $msgref = sprintf "%.8d", $ref;
    print "MESSAGE REFERENCE: $msgref   REF= $ref\n";

    $resp = $smpp->submit_multi(message_class=>0,
#                 source_addr => '0077719011234777'
                 destination_addr => ['077714107777','+919652222415'],

                 msg_reference => $msgref,
                 priority_level => 3,
                 short_message=>$msgtext,
                 
                 PDC_MultiPartMessage => $multimsg,
                 );
    $multimsg_curpart++;
    $msgtext = substr ($mymsg, 0, 120, "");
    $ref++;
}

# warn Dumper $resp;

$resp = $smpp->unbind();

# warn Dumper $resp;
warn "Done.";

#EOF
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Thank You Manoj M Chekuri