FISH connects campaign management systems to finance systems, and keeps both supplied with master data.

Campaign management
Olive (CM1) ⇄ FISH Sends mediaplans and plan lines; receives master data
Halo (CM2) ⇄ FISH Sends campaigns, placements and fees; provides insertion orders for Spectra
Finance
Prisma (UK) ← FISH Receives campaigns and placements
Spectra (US) ⇄ FISH Receives insertion orders as PBU files; reports status by email
Master data
Harp → FISH Suppliers, clients, products and POs for Prisma
Azure Blob → FISH Daily CSV snapshots of Spectra master data