I simply needed to save the text and concatenation parameters for each message part and recreate the SubmitSm from it with the udh in place when sending.

I have been able to do that now.

Thanks.

Thanks Nick.

I could not find a "PrepareSubmit" method on v1.1 but used the "Create" method of the ISubmitSmBuilder to generate the List<SubmitSm> for a long message.

Please how can I set the Concatenation parameters for each part when recreating a SubmitSm object from the information already ...

Hi Nick,

1) I prepare my message to send using InetLab, this splits the message into 1 or more parts that are required.

Please how did you achieve that.