Tractor Supply does not want an 855 acknowledging a purchase order, only rejecting one. It does not allow back orders. It processes the 846 inventory feed twice a day and expects the ASN inside a 48 hour SLA. AIMS360 runs it natively.
Almost every retailer wants an acknowledgment when a purchase order arrives. Tractor Supply does not. Its published dropship guidelines state the 855 is processed only for full order or line item rejections, and instruct vendors not to send one to accept an 850. Add no back orders, an inventory feed processed twice a day, and a 48 hour window to ship and confirm, and it is a program that rewards a system that already knows what it can fill.
Tractor Supply EDI is the electronic document exchange Tractor Supply Company uses with its vendors, covering both bulk purchase orders into its distribution centers and the drop ship program that fulfills TractorSupply.com orders direct to the customer. Published guidance describes dropship accounts connecting over AS2, with the 850, 855, 856, 810, 846, 860 and 997 in the set, plus a 180 on returns.
Three rules in that program run against what vendors expect from other retailers, and each one is a place where a system built on general assumptions gets it wrong: the acknowledgment is for rejections only, back orders are not permitted, and the inventory feed has a published processing schedule you are expected to plan extracts around.
Tractor Supply does not publish its vendor guidelines openly the way Ace Hardware does. The detail below comes from published dropship guidance circulated through EDI education sources, and it is not current dated. Treat it as the shape of the program and confirm the specifics against the guidelines issued to your account.
Published Tractor Supply dropship guidelines state the 855 is only processed for full order or line item rejections, and explicitly instruct vendors not to send an 855 to accept an 850.
This matters because the reflex runs the other way. Most retail EDI programs treat the 855 as the polite confirmation that you received the order and intend to fill it, and plenty of middleware fires one automatically the moment an 850 lands. Against Tractor Supply that is noise at best.
The guidance also notes that partial line item rejections are not accepted, and that certain 855 PO1 elements are not floating, meaning the values have to sit in the positions the implementation guideline specifies rather than wherever a generic map puts them. That is the kind of detail that separates a mapped connection from a translated one.
Published guidelines state it plainly. There is no holding a line open to ship next week.
If you cannot ship a line, the documented route is a rejection through the 855. There is no third option, which means the decision happens immediately rather than being deferred into a backlog nobody is watching.
Because a shortfall turns into a rejection rather than a delay, the 846 is doing real work. An order you cannot fill should never have been promised, and the feed is what prevents it.
On a retailer that permits back orders, an oversell is a late shipment. Here it is a rejection against your record. That is an argument for publishing availability from one pool rather than from a channel specific number.
Published guidance describes the 860 as the document Tractor Supply sends to cancel purchase orders. A system that treats every 860 as a quantity revision will mishandle it.
Published guidance states Tractor Supply processes the 846 inventory feed twice a day, at 5:15am and 9:15pm Central, expects at least one 846 daily, and documents the line item schedule date as the current day. Vendors are told to plan their extracts accordingly.
A published processing window changes how you schedule. A feed that lands at 5:30am Central has missed the morning run and sits idle for fifteen hours while Tractor Supply sells against a stale number, and with back orders disallowed that stale number turns into rejections rather than into late deliveries.
AIMS360 publishes availability from one available to sell pool spanning your warehouse, your 3PL and your other accounts, so the number going to Tractor Supply is the same number every other channel is drawing down against.
Published guidelines describe the service level as all orders shipped, with Tractor Supply receiving either a compliant 856 or an 855 rejection, within 48 hours of the vendor receiving the order.
The 856 is documented as due the same day the shipment ships, and before the 810 is transmitted. Sending the invoice first is a sequencing error, not just an early one.
Functional acknowledgments are expected within 48 hours, which is a wider window than many retailers allow but still an obligation with a clock on it.
Published guidance states the price on the packing slip should be the retail price sent in the CTP segment of the 850. On a dropship order the shopper opens that box, so printing your wholesale cost is a customer experience failure before it is a compliance one.
All dropship accounts are described as using AS2, with the qualifier and ID published in the guidelines and ISA15 carrying T in test and P in production. A separate test ID is described as available if you need one, communicated before testing starts.
Commonly published across vendor guidance. Confirm the set issued to your account before mapping.
| Document | Direction | What it carries |
|---|---|---|
| 850 | TSC to you | Purchase order, carrying the PO number and customer order number. Dropship orders are described as exchanged in real time |
| 855 | You to TSC | Rejections only. Full order or line item. Partial line item rejections are not accepted |
| 856 | You to TSC | Advance ship notice with valid tracking, due the same day the shipment leaves and before the 810 |
| 810 | You to TSC | Invoice, carrying the same product information as the ASN |
| 846 | You to TSC | Inventory advice. Processed twice daily, expected at least once a day, schedule date the current day |
| 860 | TSC to you | Purchase order change, described as the document Tractor Supply uses to cancel orders |
| 997 | Both ways | Functional acknowledgment, expected within 48 hours |
| 180 | TSC to you | Return merchandise authorization, notifying you a return is on its way |
Pet food and supplies sit alongside livestock and animal feed, farm and ranch equipment, workwear, lawn and garden and hardware. For a pet brand it is a distinct channel from pet specialty: rural and farm customers, larger formats, and a basket that mixes a bag of dog food with fencing and boots.
That means it usually runs alongside PetSmart and the other pet accounts rather than instead of them, on the same items, out of the same stock. And because pet food, treats and feed are consumables, lot and expiration data has to travel with the shipment the same way it does everywhere else.
AIMS360 carries lot and batch numbers and expiration dates on inventory, so allocation can work oldest first and the shipment record knows which lot went where. On a withdrawal that is the difference between a query and an investigation.
AIMS360 is a consumer brands ERP with EDI built in-house and mapped to each retailer's own specification rather than to a generic profile.
Orders import into the same platform holding your inventory, so the fill or reject decision is made against a real number rather than an assumption.
Mapped to Tractor Supply's documented behavior rather than to the general retail convention, so an acceptance acknowledgment never goes out.
Availability comes from one pool and can be scheduled around the published processing windows rather than sent whenever a job happens to run.
Mobile scanning builds the shipment, the ASN transmits at scan and ship with tracking, and the 810 follows it rather than preceding it.
The dropship packing slip prints from the order record using the retail price the 850 carried, so the shopper sees what they paid.
EDI is part of the platform. There are no per document, per transaction or kilocharacter charges on our side as volume grows.
Tractor Supply is one of 350+ retailer connections on AIMS360, alongside PetSmart, Ace Hardware, Rural King and Costco, all drawing on one pool of stock.
No, and this is the rule most vendors get wrong. Published Tractor Supply dropship guidelines state the 855 is only processed for full order or line item rejections, and instruct vendors not to send an 855 to accept an 850. An acceptance acknowledgment is not just unnecessary, it is contrary to the documented behavior. Build your order flow so the 855 fires on rejection only.
No. Published dropship guidelines state plainly that Tractor Supply does not allow back orders. If you cannot fill a line, the documented route is a rejection through the 855 rather than holding the line open to ship later. That makes your inventory feed the control point, because an order you cannot fill should never have been promised.
At least once a day, and published guidelines note Tractor Supply processes the 846 twice daily at 5:15am and 9:15pm Central, so extracts should be planned around those windows. The line item schedule date is documented as the current day. Because back orders are not allowed, this feed is what stops Tractor Supply promising something you cannot ship.
Published guidelines describe a service level agreement of all orders shipped and Tractor Supply receiving either a compliant 856 or an 855 rejection within 48 hours of the vendor receiving the order. The 856 is documented as due the same day the shipment ships and before the 810 is transmitted. Functional acknowledgments are expected within 48 hours.
Commonly published across vendor guidance: the 850 purchase order, the 855 for rejections only, the 856 advance ship notice, the 810 invoice, the 846 inventory advice, the 860 purchase order change and the 997 functional acknowledgment, with a 180 return merchandise authorization on returns. The 860 is documented as the document Tractor Supply uses to cancel purchase orders.
Published dropship guidelines state that all dropship accounts use AS2 communications, with a qualifier and ID published in those guidelines and ISA15 carrying T during testing and P in production. A separate test ID is described as available on request if you need one, communicated before testing begins. Confirm the current values with your Tractor Supply contact rather than taking them from any third party page, including this one.
Published guidance states the price on the packing slip should be the retail price sent in the CTP segment of the 850, not your wholesale cost. On a dropship order the shopper opens that box, so the paperwork inside it is customer facing. Printing the wrong price is a customer experience problem before it is a compliance one.
Yes, substantially. Pet food and supplies sit alongside livestock and animal feed, farm and ranch equipment, workwear, lawn and garden and hardware. For a pet brand it is a distinct channel from pet specialty, with rural and farm customers buying larger formats, and it often runs alongside PetSmart, Petco or Chewy rather than instead of them.
Yes. AIMS360 EDI is built in-house and mapped to each retailer's own specification, so Tractor Supply orders land against live inventory, the 846 publishes from one available to sell pool on the cadence Tractor Supply expects, and the ASN is built from the units the warehouse scanned. Lot and expiration data carries through on consumable pet and feed products. Tractor Supply is one of 350+ retailer connections, with no per document, per transaction or kilocharacter fees on our side. See the full retailer list.
Last reviewed 1 September 2026 by the AIMS360 EDI team. Tractor Supply does not publish its vendor guidelines openly. The rules described here come from published Tractor Supply drop ship guidance circulated through EDI education sources, which is not current dated, and are presented as the shape of the program rather than as a live specification. Requirements are issued to each vendor directly and can change, so confirm the document set, timings, qualifiers and IDs against the guidelines issued to your account before mapping. Tractor Supply and TractorSupply.com are trademarks of Tractor Supply Company, and AIMS360 is not affiliated with or endorsed by Tractor Supply Company.
A 30 minute live demo taking a dropship order through fill or reject, same day ASN and invoice from one record, built for pet, feed and hardgoods brands.
