Overview

Amazon sellers using the Send to Amazon (STA) shipment creation workflow may encounter various error messages when generating box labels, pallet labels, or entering tracking details. These errors can stall your inbound shipments and delay inventory replenishment if not resolved quickly. This guide breaks down the most common errors at each stage of the workflow and provides practical steps to get your shipments back on track.

Key Points / What Sellers Need to Know

• Label language mismatches are address-based — Amazon generates label content based on your ship-from address, so labels will reflect the language of your shipment's origin country. If labels appear in the wrong language, check your account settings to ensure your preferred language is correctly configured.
• Label generation failures are often timing-related — SKU details or program eligibility can change between the time you start a shipping plan and when you reach the label step, causing errors that seem to appear out of nowhere.
• Partnered carrier shipments have different rules — If you're using Amazon's partnered carrier program, eligibility requirements must remain valid throughout the entire workflow, not just at the beginning.
• Tracking IDs are now strictly enforced — Amazon requires unique tracking IDs per box for non-"OTHER" carriers, and IDs must match the carrier selected in the workflow.
• Some shipments cannot be cancelled — Inventory promise shipments lock you into the workflow and cannot be voided once created.

Label Generation Errors

The most common label error sellers encounter is the message stating that Amazon cannot generate labels at that moment. This typically occurs because something changed between the time you began creating the shipment and when you reached the label printing step. For partnered carrier program shipments, verify that the shipment is still eligible for the program by creating a new test workflow with the same SKU manifest. If eligibility has lapsed, you may need to rework your shipping plan entirely. For non-partnered shipments, confirm that all SKU details remain accurate, that each product is still fully set up for FBA in your destination marketplace, and that prep and labeling requirements are complete and consistent across all pack lines.