SAP Integration for Excel and Outlook Add-ins

Eighteen months after their S/4HANA go-live, buyers at a building materials manufacturer still made every real decision in exported spreadsheets. The migration had cost seven figures; the Fiori apps were used for looking things up, then everything went to Excel to actually decide. We stopped fighting the habit and equipped it instead.

Working with their basis team, we exposed three Gateway OData services and built a task pane that pulls open purchase orders, stock levels, and vendor lead times into the buyers' own planning workbooks, with a write-back path that creates requisitions from marked rows. Sign-in rides on their existing Microsoft credentials, so there is no second password to manage. Six months on, the measure the client quotes is not hours saved. It is that plant-level purchasing decisions now trace back to figures pulled the same morning.

Not always. SAP's own Analysis for Office covers read-only analytical reporting well, and if your team only consumes BW queries, buy that and stop. A custom build pays when you need write-back, when SAP figures must combine with other systems' data in one workbook, or when Business One and older ECC landscapes rule the standard tools out. Mid-migration is the wrong moment: wait until your services are stable, or scope against the target system rather than the one being retired.