madhum20 are we talking about 1st party data or 3rd party data here?
For 1st party data, here are some details around onboarding offline data: Inbound Data File Contents: Syntax, Invalid Characters, Variables, and Examples
For 3rd party, the Marketplace would be the ideal solution, where Gap can be registered as a data provider and create a feed ypu can subscribe to - see Subscribe to a Public Data Feed for more details