Trading Partner: StitchFix
Article Link: https://help.truecommerce.com/en/articles/16646639-trading-partner-onboarding-stitchfix
StitchFix is an online personal styling service that uses Electronic Data Interchange (EDI) to communicate order and fulfillment data with its vendors. When adding StitchFix to your EDI network, there are specific identification requirements, compliance testing steps, and transaction types that must be addressed before your integration can go live.
StitchFix conducts compliance testing through a third-party company, SPS Commerce, prior to any Go-Live. Your Implementation Specialist will coordinate this process with you, but there are preliminary actions you will need to complete on your end before testing can begin.
EDI IDs
StitchFix utilizes the following Electronic Data Interchange (EDI) IDs for identification purposes. These EDI IDs are made up of a Qualifier and an ID, which are transmitted within the Interchange Control Header (ISA) segment on all inbound transactions. The ISA segment is the outermost "envelope" of an EDI file and is used by Transaction Manager to identify the Sender and Receiver of any EDI transaction that is sent or received.
The table below lists the most common EDI IDs used by StitchFix:
X12 Qualifier | EDI ID | Primary ID? |
ZZ | TST1STITCHFIXIN | Yes |
ZZ | STITCHFIXINCBLK | No |
StitchFix will expect a specific EDI ID based on your business relationship with them. Selecting the wrong EDI ID will result in EDI Transactions not being sent or received. You will need to work with StitchFix to determine the proper EDI ID to use.
Preliminary Steps
StitchFix uses a third-party company, SPS Commerce, to conduct compliance testing on their behalf. Be sure to engage with your SPS Commerce Account Representative to ensure your testing agreement has been signed and that you have access to the SPS Commerce Testing & Certification portal.
The contact email is: [email protected]
Login: to the SPS Commerce online portal once access is granted
Navigate: Testing & Certification → Dashboard
Select: StitchFix from the Active tab on the Dashboard to begin the testing process
Review: Acknowledge the EDI Specifications
Enter: Test setup details including:
Connection Method type — VAN
VAN Name — TrueCommerce
Enter: Test transaction details and test transaction item details
Portal Testing
StitchFix requires you to complete compliance testing before Go-Live. Refer to the Next Steps section below for detailed instructions and expectations.
If you prefer, TrueCommerce can conduct and complete compliance testing on your behalf. In that case, provide the following details:
URL for the SPS Commerce portal
Username for the SPS Commerce portal
Password for the SPS Commerce portal
Commonly Used Transactions
The table below lists the EDI transactions most commonly used when trading with StitchFix:
EDI Transaction |
The EDI documents listed here are provided for reference only and may not be comprehensive. For the most up-to-date and complete list of required EDI documents, refer to the SPS Testing & Certification Portal.
Next Steps
Once the purchase of the StitchFix plug-in is complete, your Implementation Specialist will reach out to schedule time to complete and/or coordinate a plan for compliance testing and/or Enterprise Resource Planning (ERP) system integration testing.
Review all steps in the SPS Testing & Certification portal, as each step will require information to be entered before testing can proceed. If you need any assistance completing Steps 2 and 3, you can work with your assigned Implementation Specialist.
For further instructions, please refer to our useful guide.
Additional Resources
rev 08/26/26