Due to local restrictions in some countries your sender ID cannot always be maintained. Sender IDs can be overwritten to long codes, short codes, or generic alpha IDs, depending on the destination.
For some destinations we are able to register your Sender ID, so you can keep sending with your desired sender. In our country restrictions you can see an overview per country if there are any limitations relating to the sender ID. In the restrictions page you will also see what the process for registrations is if this is possible.