Connect Google Sheets and Amazon Vendor without the double work.

Retail supplier integration

Purchase orders from Amazon Vendor - synced to your ERP or inventory system

Wherehouse ingests purchase orders raised by Amazon Vendor and lines them up with your fulfilment and invoicing flow, so you avoid retyping and spreadsheet handovers. Stock, pricing and catalogue automation on this channel depends on Amazon Vendor's integration model - the sections below spell out what is enabled for your stack.

Why it matters for suppliers

• ✅ Faster PO to invoice - shorter turnaround helps you stay a preferred supplier and can mean more replenishment from the retailer.
• ✅ Less admin, fewer errors - PO lines and references land in the systems your team already uses.
• ✅ Fewer stock comebacks - Clean PO and line data through to picking and invoicing reduces mismatches, cancellations and service churn.
• ✅ Commit stock to key retailers - Prioritise fulfilment and allocation rules for the channels that matter most, without maintaining a separate spreadsheet per retailer.
• ✅ Custom business logic - mappings, pack sizes, lead times and approvals tuned to how you operate.
• ✅ One place for every channel - Marketplaces, retail B2B and your own online stores can all report into Wherehouse so sales, stock and fulfilment stay coherent instead of siloed per partner.

For Amazon Vendor, this integration can include inbound purchase orders from the retailer.