Overview

Sellers encounter error 14003 when Amazon detects that two or more scheduled price updates for the same ASIN occupy overlapping calendar days. The conflict stops the entire batch of price changes from being applied, which can interrupt time‑sensitive promotions. Resolving the overlap promptly restores the intended pricing timeline.

Key Points

• Overlap triggers rejection — Any shared day between two scheduled price windows causes Amazon to block the submission, for example a 10‑day sale that runs into the start of a second 7‑day discount.
• End date must precede next start — The final day of one price period must be earlier than the first day of the following period; a schedule ending on April 15 cannot be followed by another that begins on April 15.
• Bulk flat‑file uploads are high‑risk — When a spreadsheet contains multiple rows for the same product, a single misplaced date can generate the error for the whole file.
• All conflicting entries are halted — Until the overlap is removed, none of the involved schedules will activate, even those that are correctly timed.
• Error does not affect account health — The issue is limited to pricing logic, but it can still cause missed sales opportunities during peak periods.

How the Error Occurs

1. Schedule creation — A seller adds a promotional price for ASIN B07XYZ from May 1 through May 10.
2. Subsequent schedule entry — The same seller later creates another price for the identical ASIN from May 8 through May 15.
3. System validation — Amazon’s pricing engine scans the two entries, sees that May 8‑May 10 appear in both windows, and returns error 14003, rejecting the entire upload or manual entry batch.

Context Comparison (optional)

• Before: A seller uploaded a file with three rows for the same product, each row spanning a 30‑day period, but the second row started two days before the first row ended, causing the system to reject all rows.