Migatration SUP 2.1.3 to SMP 2.3 or 3.0

Hi experts,

Now i am using SUP 2.1.3 OData SDK applications. I want to migrate SUP 2.1.3 to SMP 2.3.or 3.0. For that I need some clarifications. Please help me on this.

• What is the migration involved on server side
  1. SMP side
  2. GW side
• What is the migration involved on client side (if any) - BB, iOS, Android for migrating OData
  1. If there is effort involved, is there a migration tool ?
  2. Can we start using jSON instead of XML to speed up data processing

Thanks & Regards,

Nithya M