Important transactions in the context of BW Fiori Apps:

Tile Maitenance - category,group
/ui2/flpd_cust

Transaltion
SE63, Short Text, TABL, WDY_CONF_USERT2

Cache
/UI2/INVALIDATE_CLIENT_CACHES
/UI2/INVALIDATE_GLOBAL_CACHES
/UI5/APP_INDEX_CALCULATE
/UI2/DELETE_CACHE