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We are currently experiencing an outage. We're aware of the problem and are working to fix it.

[Click here for Latest Info on Service Outages]

Recent Service Interruption on 2/4/2025: We are currently functioning normally.

[Click here for Latest Updates on Service Interruptions]

Maintenance Alert: SupportSync will be performing scheduled maintenance on 12/16/2023 between 11PM and 12PM PST. During this time period, SupportSync may be unavailable.
FedEx is currently experiencing an outage. They're aware of the problem and are working to fix it.
There is currently a problem sending to the YAHOO.COM domain. Yahoo servers are blocking our emails to customers. We're aware of the problem and are working to fix it.

UPS Shipping: Action Required for your Account. UPS Now Requires OAuth 2: [See Latest UPS Setup Instructions]
FedEx Shipping Error: "ERROR: [1000] Authentication Failed."   [Click here for latest info]
  1. SupportSync Help Portal
  2. Knowledge Base

Knowledge Base

Follow New articles New articles and comments

  • Certificate Error in IIS
  • Label prints too small with square in corner of label
  • UPS Online shows lower rate for international shipment
  • ERROR: [3907] Invalid Customs Value
  • Stripe Integration
  • Changing the Location of a Serial Number
  • Can't print labels with Firefox
  • Installing a Private App in Zendesk
  • Zendesk App Release Notes
  • How to Void Shipment and Close Return
  • After export to CSV File, Serial Numbers are shown in Scientific Notation
  • Change the Email Template for certain Products
  • How to print a label for the shipping dept and include a return label for customer in the box
  • Warranty Tracking on the Product Level
  • New Feature: RMA# Barcode on UPS Labels
  • Change the Logo Link / Add Javascript to the Portal
  • Network Printer Support
  • Label Printing Software and Issues
  • Multiple Prepaid Labels per Return
  • Payment Methods
  • Issue with SupportSync Zendesk app 12/11/2019
  • "Authorization failed" error in Zendesk app
  • Language Options
  • Can Return Types be Customized?
  • Adding Multiple Products to a Return (RMA)
  • ERROR: [868] Service is not allowed.
  • Removal of Zendesk Apps framework v1
  • ERROR: [8262] ELECTRONIC_TRADE_DOCUMENTS is not allowed for the origin/destination pair.
  • Using Endicia with SupportSync
  • HardError:[120801] Address Validation Error on Shipper address.
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