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SFTP USER GUIDE
FCA US
INFORMATION & COMMUNICATION TECHNOLOGY MANAGEMENT
EBMX Abstract
EBMX was built to be the premier automotive business-to-business message exchange. The Electronic
Business Message eXchange (EBMX) allows FCA and its partners to exchange electronic business
documents using standard Internet protocols. Message exchange is enabled from individual desktops or
via highly integrated machine-to-machine communication.
EBMX puts FCA and its Trading Partners in an optimum position to embrace new and developing
systems, increase transaction speed, and promote 'just-in-time' processing. EBMX gains are realized
through the entire supply chain!
FCA US - SFTP User Guide
1 Overview
1.1
Purpose
This document will provide information for a Trading Partner (TP) to send and receive transactions to and
from the Electronic Business Message eXchange (EBMX), using SFTP. The following details the steps
required for the Trading Partner to put files to the EBMX system via the internet using a VPN connection.
1.2
Requirements
The requirements assume the Trading Partner already has necessary software to create and send EDI
over the Internet. The Trading Partner must provide FCA with the following:



Information to setup the SFTP tunnel with a trading partner
Setup a connection via the FCA VPN. Instruction can be found:
https://ps.extra.chrysler.com/sites/itb-ebus/Pages/Home.aspx
Standards based SFTP Client and Server to communicate with.
The EBMX system has incorporated SFTP as an add-on process; the current version of the software
does not support the SFTP protocol. This integration has many caveats:
1. In order to support the SFTP protocol we have attempted to integrate into the EBMX as close to a
real-time processes as possible. Therefore when submitting files (see Section 3) there may be a
delay of a few minutes (usually one minute) before the file is processed.
2. EBMX will provide a status of all processed files located in /RESULTS or /ERRORS. The
/RESULTS directory contains files describing successful processing. The /ERRORS directory
contains files describing unsuccessful processing.
3. Please do not remove these log files. EBMX has taken responsibility to archive and remove
result and error files greater than fourteen (14) days old. The removal and archival process will
execute at approximately 3:00 am each day.
4. In an attempt to prevent the removal of directories, we have secured and pre-populated the
required directory structure that will enable you to conduct business with FCA. We request that
you do not in any way change, add, or delete directories or permissions. In doing so we cannot
guarantee the processing of your files.
5. When placing a file on the EBMX system using SFTP you are required to put the file in /TMP,
once the “put” is complete you must move the file to the appropriate directory path (see Section
3). Be aware that EBMX will remove any and all files with a creation timestamp greater than 24
hours from the /TMP directory. The cleanup process will execute at approximately 3:00 am each
day.
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1.3
Key Sharing
In order to make a connection, Public and Private Keys must be exchanged. The following steps and
diagrams will assist the Trading Partner (TP) with the exchange.
1.
2.
3.
4.
5.
6.
7.
EBMX sends public key to TP
TP stores public key
TP generates public/private key pairs
TP sends public key to EBMX
EBMX stores TP public Key
EBMX initiates a session with TP to accept the host key
TP initiates a session with EBMX to accept the host key
Considerations:




Password authentication is not allowed
Host based authentication is not allowed
SSH 1 (SSH protocol version 1) is not supported – only SSH2 (SSH protocol version 2) is
supported
If you are originating traffic from multiple hosts using the same user id, you are required to:
1. Duplicate the RSA/DSA keys to each of your hosts
or
2. Generate and send FCA each of the RSA/DSA public keys.
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2 Receiving (FCA Sending) files via SFTP
2.1
System Access
2.1.1 Firewall Considerations
If your system is connected to a firewall, you are required to allow FCA access through the firewall.
Because all firewall software configurations are different, the trading partner must contact their firewall
support staff to determine the proper configuration. The SFTP server on EBMX will use port 50322 to
receive.
2.2
File Placement
2.2.1 File Placement when FCA sends files
FCA needs to logon to the trading partner’s system in order for EBMX to send data via SFTP. FCA will
require a user ID and public/private key pairs for the trading partner’s system to do this. When creating
this logon ID, specify a home directory or file set with full read/write capability for EBMX to place files to.
Typically, all files created on the trading partner's system will be of the form:
<docType>.Annnnn
Where: <docType> defines the transaction type contained in the file. (Please see the Application ID
Codes document on the EDI website for a list of all EDI application codes).
A = the letter A
nnnnn = the number 00001 through 99999
Note: the qualifier, (Annnnn) derives the least-significant five (5) digits of a numeric portion from an EBMX
internal file name and is not guaranteed to be unique. A high volume-trading partner might see a
recurrence of the qualifier – even in the same day. For this reason, any trading partner maintaining logs,
audit trails, or file copies should take appropriate steps to ensure that data is not overwritten & confusion
does not occur. A suggestion might be to rename the file using the date and time the file arrived as a part
of the new name. In addition, the sequence number is not assigned by trading partner. The numbers are
assigned across the entire EBMX system, and, therefore, an individual trading partner will see gaps in the
sequence number portion of the file name. The trading partner should not expect to see consecutive
sequence numbers on a consistent basis.
Alternate file naming is supported – please contact: [email protected] for details.
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FCA US - SFTP User Guide
3 Submitting files via SFTP
In general; the Trading Partner will connect using a standard SFTP client and “put” the file to the EBMX
system; we require the user to deposit the file in /TMP located under their home directory. Upon a
successful put, you must move the file to the appropriate sub-directory. Once you move the file, the
EBMX system has processes that will scan each sub-directory and process the file. After the file is
processed, a result file is created in the trading pasterns /RESULTS directory. If at any time an error
occurs during process a file, an error file is created in the /ERRORS directory. Please see each of the
following sections for specific information pertaining to processing of each type of file.
As mentioned above, after the put, the user must move the file to the appropriate sub-directory structure.
As stated in the overview section, FCA has loosely integrated the SFTP protocol into the EBMX
application. In order to have EBMX process the files, we have developed a directory structure that
mirrors the Sender/Receiver/Document Type nomenclature that EBMX uses to transfer files. You will see
located in your home directory the following structure:
/<sender>/<receiver>/<document type>/
Where:
Sender
= Trading Partner ID (not your user ID)
Receiver
= Destination
Document Type = A predefined label used to describe the characteristics of the file.
Example:
/TESTDOC
/TESTDOC/LOOPTEST
/TESTDOC/LOOPTEST/LOOPBACK
/TMP
/ERRORS
/RESULTS
EBMX will recognize two types of EDI transactions – real time and batch. Real time transactions include
ASN/ASC (856) and STARS 214. All other EDI and VICS/VISTA transactions are batch processed.
It should be noted that multiple types of submissions might be needed based on the nature of business
being done with FCA. For example, a production supplier would normally need to send ASN's using the
real time submission process and any other document with the batch processes. Similarly, a carrier who
is required to send in ASC's and/or STARS 214's would do so using the real time submission process and
other documents such as Freight Bills using the batch processes.
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3.1
File Permissions (access mode)
In order to successfully process a file, there are is a minimum required set of file permissions. All files
placed on the server must have read and write access at the group level. Most SFTP Client
implementations will set the file permissions based on the local file at the time of creation. Please verify
that any file created has the following minimum access modes:
drwxrwxrwx
drwxrwxr-x
-rw-rw----
2 ecx36adm ebmx
3 ecx36adm ebmx
1 testid
ebmxsshd
512 Dec
512 Nov
7209 Dec
8 08:57 .
5 10:00 ..
9 10:51 <File Name>
If file permissions are not correct, most SFTP clients provide the chmod command, example:
sftp> chmod 660 <file name>
If your SFTP client does not provide a command to alter the file permissions, please contact your
technical support for assistance.
3.2
Results Directory
After EBMX successfully processes the file, an entry in written to the /RESULTS directory, this entry is a
zero length file with the following naming convention:
<sender>.<receiver>.<doctype>.<filename>.<tracking ID>.<timestamp>
Where:
sender = TP sender ID
receiver = the receiver of the file
doctype = Document type ID
filename = name of file that was placed on the system
tracking ID = a unique number that identifies the submission into EBMX
timestamp = date and time of the submission in the format YYYYMMDDHHMMSS
An example file:
TESTDOC.EDI.EDIX12.prod.test.4782122.20100914142201
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3.3
Errors Directory
After EBMX unsuccessfully processes the file, an entry in written to the /ERRORS directory, this entry is a
zero length file with the following naming conventions:
<sender>.<receiver>.<docType>.<filename>.ERROR.<timestamp>
or
<sender>.<receiver>.<docType>.<filename>.FILETOOBIG.<timestamp>
Where:
sender = TP sender ID
receiver = the receiver of the file
doctype = Document type ID
filename = name of file that was placed on the system
timestamp = date and time of the submission in the format YYYYMMDDHHMMSS
ERROR refers to an issue submitting/processing the file; FILETOOBIG is a file in excess of 2Gb.
Example files:
TESTDOC.EDI.EDIX12.prod.test.ERROR.20100914142202
TESTDOC.EDI.EDIX12.prod.test.FILETOOBIG.20100914142203
3.4
Submitting Initial Loop-Back Test
This initial test will be completed by the trading partner to test network configuration and access. The
trading partner will submit a file that is immediately sent back to test access through firewalls and ability
for data to be delivered through EBMX.
3.4.1 Example Session
Trading Partner initiates an SFTP session to EBMX. (Please see Appendix A for a detailed session)
Changes directory to /TMP:
cd /TMP
Transfers a file:
put <filename>
Moves file to Document Type directory:
rename <filename> /TESTDOC/LOOPTEST/LOOPBACK/<filename>
At this time, within approximately 1 minute the file is processed and delivered to the requested
destination and a result file is placed in the /RESULTS directory. It is recommended you monitor this
directory. See section 3.2.1 Expected Results for a description of the results file.
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3.4.2 Expected Results
A successful Loop-back test will result in the following:
/RESULTS/<sender>.<receiver>.<doc type>.<filename>.<tracking id>.<timestamp>
Where:
/RESULTS
Sender
Receiver
Doc type
Filename
Tracking ID
Timestamp
3.5
= Pre-configured directory created at sign-up. (Do Not Remove)
= TESTDOC
= LOOPTEST
= LOOPBACK
= Name of file from the put/move command
= upon a successful submit, EBMX returns a numeric sequence number
= Date and time of the submit
Submitting files via SFTP Example
3.5.1 Example Session
Connecting to clmsd058b.cldc.chrysler.com...
You are accessing FCA (Fiat Chrysler Automobiles) systems.
Connected to EBMX SFTP server.
Connection accepted.
Access to FCA's computer systems is controlled.
FCA authorizes use for its business purposes only.
Unauthorized access is prohibited due to risk of irreparable harm to FCA.
FCA management may monitor use to ensure compliance with its policies.
FCA may terminate access privileges, take disciplinary action
and/or institute civil or criminal proceedings to enforce this policy.
If any part of this policy is unacceptable to you, please disconnect now!!!
Thank you.
YOUR ACCESS IS BEING LOGGED & MONITORED!!!!
sftp> cd /TMP
sftp> put prod.test
Uploading prod.test to /TMP/prod.test
prod.test
100% 103
sftp> rename prod.test /TESTDOC/LOOPTEST/LOOPBACK/prod.test
sftp> cd /RESULTS
sftp> ls
TESTDOC.LOOPTEST.LOOPBACK.prod.test.4782122.20100914142201
TESTDOC.LOOPTEST.LOOPBACK.prod.test.4783678.20100915093200
sftp> bye
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FCA US - SFTP User Guide
3.5.2 Expected Results
Check the /RESULTS directory
:
:
sftp> cd /RESULTS
sftp> ls
TESTDOC.LOOPTEST.LOOPBACK.prod.test.4782122.20100914142201
TESTDOC.LOOPTEST.LOOPBACK.prod.test.4783678.20100915093200
sftp> bye
:
:
3.5.3 Unexpected Results – file not in /RESULTS – check /ERRORS
Check the /ERRORS directory
:
sftp> cd /ERRORS
sftp> ls
TESTDOC.LOOPTEST.LOOPBACK.prod.test.ERROR.20100914142202
TESTDOC.LOOPTEST.LOOPBACK.prod.test.FILETOOBIG.20100914142203
sftp> bye
:
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FCA US - SFTP User Guide
4 Real Time Data Submission via SFTP
4.1
Submitting ASN/ASC (856) via SFTP
EBMX will not process ASN/ASC transactions larger than 300k. If ASN/ASC’s are larger than this they
will need to be separated into multiple submissions smaller than 300k. In the case that an Trading
Partner submits a large ASN/ASC, EBMX will return an error message in an 824/997 document pair.
Note: for Freight Consolidators sending in ASCs element ISA08 should be 04000FC. This instructs the
CHASE system to process the 856 as an ASC rather than as an ASN. This is required for Freight
Consolidators using the EBMX directly or other VAN).
A detailed session for Real Time ASN/ASC transactions is contained in following section:
4.1.1 ASN/ASC (856) Parameter Description
Application
Directory Structure
ASN/ASC
Example:
<TP ID>/CHASE/EDIX12
56789B/CHASE/EDIX12/<filename>
TP ID = EBMX Member Identifier/Account Identifier
4.1.2 Sample Session
Connecting to clmsd058b.cldc.chrysler.com...
You are accessing FCA (Fiat Chrysler Automobiles) systems.
Connected to EBMX SFTP server.
Connection accepted.
Access to FCA's computer systems is controlled.
FCA authorizes use for its business purposes only.
Unauthorized access is prohibited due to risk of irreparable harm to FCA.
FCA management may monitor use to ensure compliance with its policies.
FCA may terminate access privileges, take disciplinary action
and/or institute civil or criminal proceedings to enforce this policy.
If any part of this policy is unacceptable to you, please disconnect now!!!
Thank you.
YOUR ACCESS IS BEING LOGGED & MONITORED!!!!
sftp> cd /TMP
sftp> put chase.asn.asc
Uploading chase.asn.asc to /TMP/prod.test
chase.asn.asc
100% 103
sftp> rename chase.asn.asc /56789B/CHASE/EDIX12/chase.asn.asc
sftp> cd /RESULTS
sftp> ls
56789B.CHASE.EDIX12.chase.asn.asc.4782122.20100914142201
sftp> bye
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FCA US - SFTP User Guide
4.2
Submitting STARS 214 Transaction via SFTP
A detailed session for Real Time STARS 214 transactions is contained in following section:
DO NOT USE THIS FEATURE UNTIL DIRECTED TO DO SO BY FCA!
4.2.1 STARS Parameter Description
Application
Directory Structure
STARS 214
Example:
<TP ID>/STARS/EDIX12
56789B/STARS/EDIX12/<filename>
TP ID = EBMX Member Identifier/Account Identifier
4.2.2 Sample Session
Connecting to clmsd058b.cldc.chrysler.com...
You are accessing FCA (Fiat Chrysler Automobiles) systems.
Connected to EBMX SFTP server.
Connection accepted.
Access to FCA's computer systems is controlled.
FCA authorizes use for its business purposes only.
Unauthorized access is prohibited due to risk of irreparable harm to FCA.
FCA management may monitor use to ensure compliance with its policies.
FCA may terminate access privileges, take disciplinary action
and/or institute civil or criminal proceedings to enforce this policy.
If any part of this policy is unacceptable to you, please disconnect now!!!
Thank you.
YOUR ACCESS IS BEING LOGGED & MONITORED!!!!
sftp> cd /TMP
sftp> put stars.214
Uploading stars.214 to /TMP/ stars.214
stars.214
100%
sftp> rename stars.214/56789B/CHASE/EDIX12/stars.214
sftp> cd /RESULTS
sftp> ls
56789B.STARS.EDIX12.stars.214.4782122.20100914142201
sftp> bye
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5 Batch Data Submission via SFTP
EBMX will recognize two types of EDI transactions – real time and batch. Real time transactions include
ASN/ASC (856) and STARS 214. Batch transmissions include EDI and VICS/VISTA
5.1
Submitting Batch Transactions
5.1.1 EBMX Submit Parameter Requirements
The following table shows the directory structure for the respective application:
Application
Directory Structure
EDI
Example:
VICS/VISTA Production
(510, 520, 530, 540, 550, & 630)
<TP ID>/EDI/EDIX12
34567A/EDI/EDIX12/<filename>
<TP ID>/VISTA/EDIX12
Example:
34567A/VISTA/EDIX12/<filename>
Example:
<TP ID>/VISTA/PHOLD
76543/VISTA/PHOLD/<filename>
VISTA 127 – Carrier Baying Order
VICS
824, 926, 928, & 997
<TP ID>/VICS/EDIX12
Example:
69832/VICS/EDIX12/<filename>
VICS/VISTA – Test
(Test VISTA 510, 520, 530, 540, 550, & 630)
Example:
<TP ID>/VISTT/EDIX12
Test VISTA 127 – Carrier Baying Order
Example:
<TP ID>/VISTT/PHOLD
69832/VISTT/PHOLD/<filename>
Test VICS 824, 926, 928, & 997
<TP ID>/TVICS/EDIX12
69832/TVICS/EDIX12/<filename>
Example:
Modular Provider
Tier 1 to Modular Provider Tier 2
69832/VISTT/EDIX12/<filename>
<TP ID>/< Receiver ID, prefixed with ‘MS2’>/MSEDIX12
Example:
Modular Provider
Tier 2 to Modular Provider Tier 1
MS99661/MS256743/MSEDIX12/<filename>
<TP ID>/< Receiver ID, prefixed with ‘MS1’>/MSEDIX12
Example:
MS99661/MS156743/MSEDIX12/<filename>
TP ID = EBMX Member Identifier/Account Identifier
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5.1.2 Example Session
Connecting to clmsd058b.cldc.chrysler.com...
You are accessing FCA (Fiat Chrysler Automobiles) systems.
Connected to EBMX SFTP server.
Connection accepted.
Access to FCA's computer systems is controlled.
FCA authorizes use for its business purposes only.
Unauthorized access is prohibited due to risk of irreparable harm to FCA.
FCA management may monitor use to ensure compliance with its policies.
FCA may terminate access privileges, take disciplinary action
and/or institute civil or criminal proceedings to enforce this policy.
If any part of this policy is unacceptable to you, please disconnect now!!!
Thank you.
YOUR ACCESS IS BEING LOGGED & MONITORED!!!!
sftp> cd /TMP
sftp> put prod.test
Uploading prod.test to /TMP/prod.test
prod.test
100% 103
sftp> rename prod.test /34567A/EDI/EDIX12/prod.test
sftp> cd /RESULTS
sftp> ls
34567A.EDI.EDIX12.prod.test.4782122.20100914142201
sftp> bye
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6 Retry Handling - Undeliverable Messages (FCA to Trading Partner)
The EBMX will attempt to send (PUSH) any EDI or proprietary formatted message to a trading partner
using SFTP PUSH as soon as the EBMX receives the messages from the source application.
The PUSH mode assumes that the trading partner’s SFTP server will be up and running on a 7 x 24 x
365 basis. Recognizing that this cannot always be the case, EBMX has implemented a series of
message retry strategies. These strategies operate in such a way that whenever EBMX tries to deliver a
message to a trading partner and is unsuccessful, EBMX will wait a configured period of time and try
again at the end of that time period. It will try repeatedly until a certain number of retry attempts have
been made. When the specified numbers of retry attempts have been made, the message will be
logically copied to a directory on EBMX.
Upon retry exhaustion, an email message is generated and sent to the trading partner in addition to all
concerned parties at FCA. The email message is sent to the address that the trading partner specified in
the EBMX subscription submission. This address can be a distribution list if the trading partner so
desires. EBMX requests that the notification email be a generalized address for the trading partner’s
company rather than an individual. The trading partner can change the current email address by
submitting a request to the Help Desk and request that the ticket be routed to the EBMX. The Help Desk
can be reached at 1-800-332-9978. When communicating with the Help Desk, please provide the
supplier code being referenced and the email address to be used in the future. Failure to provide this
information may result in a change not being made because the trading partner’s membership record
cannot be found.
The retry strategy used for each message will depend on the FCA priority of the message content. An
example table is provided below:
Priority
Attempts
Interval
(Minutes)
10 [high]
20 [medium]
12
24
5
15
40 [low]
24
30
80 [special]
2
1
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Example
ASR (response to an ASN)
862 SDS; ASN copies/ASCs
[EDI 856]
846 Pay as Built; 830 Release;
850 Purchase Order
LOOPTEST file
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An example of the email that will be sent is as follows:
Subject: EBMX Deliver Failure Notice (SFTP_Retry)
An EBMX message destined for your server has exhausted a set of pre-defined
retry attempts and has been archived.
Relevant information regarding the failed transmission:
Sender:
EBMX
Receiver:
tpid
Doctype:
FTP_ACTIVE_RETRY
Date/time:
2001-07-26:10:07:43.21
Tracking ID: 6319
To request a re-transmission, forward this email to [email protected]
Messages are retained for a maximum of 14 days then removed from the system.
If you have not requested a re-transmission during that period, it is your
responsibility to contact the source application for the data.
Please review your system and network to find and fix reasons the message could
not be delivered.
Further questions or issues should be addressed to the Chrysler Help Desk at 1800-332-9978. Please have the trouble ticket routed to EBMX.
Thank you
Upon receipt of the email above, the trading partner must contact the EBMX support desk to have the
message re-transmitted. EBMX support personnel will make no further attempt to ensure that the
message is delivered to the trading partner. It is the responsibility of the trading partner to ensure
that this message is delivered.
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Appendix A – Sample SFTP session
Text in bold is user supplied commands/responses.
cli007cpsd01:$ sftp -oPort=50322 [email protected]
Connecting to clmsd058b.cldc.chrysler.com...
You are accessing FCA (Fiat Chrysler Automobiles) systems.
Connected to EBMX SFTP server.
Connection accepted.
Access to FCA's computer systems is controlled.
FCA authorizes use for its business purposes only.
Unauthorized access is prohibited due to risk of irreparable harm to FCA.
FCA management may monitor use to ensure compliance with its policies.
FCA may terminate access privileges, take disciplinary action
and/or institute civil or criminal proceedings to enforce this policy.
If any part of this policy is unacceptable to you, please disconnect now!!!
Thank you.
YOUR ACCESS IS BEING LOGGED & MONITORED!!!!
sftp> cd TMP
sftp> put test
Uploading test to /TMP/test
test
100% 8867
sftp> rename test /TESTDOC/LOOPTEST/LOOPBACK/test
sftp> cd /RESULTS
sftp> ls -ltra
drwxr-xr-x
7 31080
973
512 Mar 26 13:02 ..
-rw-rw-r-1 31080
973
0 Mar 29 08:49
TESTDOC.LOOPTEST.LOOPBACK.test.4427541.20100329084933
drwxrwxr-x
2 31080
973
512 Mar 29 08:54 .
-rw-rw-r-1 31080
973
0 Mar 29 08:54
TESTDOC.LOOPTEST.LOOPBACK.test.4427553.20100329085429
sftp>
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Appendix B – File Name Requirements
The following rules should be adhered to when creating file names:





All filenames must be unique within the Sender/Receiver/Document Type directory.
Valid file names should consist of upper and lower case alphabetic characters, numbers,
underscores and periods.
Embedded spaces are not allowed.
Special characters are not allowed.
File name length should be no more than 100 characters.
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Appendix C – Documentation Version Control
Current
Date
02/08/2010
09/14/2010
01/05/2011
12/11/2013
04/29/2015
Author
GLC9
GLC9
GLC9
KJH26
Change from Previous Version
Initial Version
Update per Group Review
Added File Permissions Section
Updated – added documentation for ERRORS directory & updated retry
categories
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