Hi Alves Tosin,
During the setup of the SAP Fiori launchpad (in the SAP Fiori launchpad designer) you must specify the business parameter SAPClient in the Navigation > Parameters field of the app launcher tile configuration. For example, SAPClient=001, where 001 is the client of the system from which the data comes.
Person who is setting up the tiles(Mostly Basis team) can perform this activity.
Reference URL: SAP Library - SAP Fiori Apps
Thanks,
Prasanna