Understanding Error 90189: Why Certain Product Listing Attributes Cannot Be Deleted
Error 90189 blocks bulk updates when a required attribute like “Brand” is sent blank. In a 5,000‑SKU upload the seller hit dozens of these errors, but enabling the “Partial Update” flag stopped the deletions and allowed price changes to process.
Overview
Error 90189 appears when a seller tries to erase a field that Amazon treats as mandatory or catalog‑protected, typically during bulk uploads or API submissions. The validation stops the change to keep product records complete, and sellers must adjust their feed strategy to avoid the block.
Key Points
- Protected fields are immutable — Once Amazon marks an attribute as required for a given product type, any attempt to clear it, even with an empty cell, triggers the error.
- Error message pinpoints the attribute — The response reads “Attribute ‘{attribute_name}’ cannot be deleted from the record,” allowing sellers to identify the exact field causing the failure.
- Bulk file and SP‑API feeds are common sources — Submitting a flat‑file inventory update or a Selling Partner API payload that includes a null or blank value for a locked attribute will generate the validation block.
- Category‑specific rules differ — A size attribute may be deletable for clothing but locked for industrial tools, so the same field can behave differently across product categories.
- Partial‑update mode can bypass accidental deletions — Using the “Partial Update” option tells Amazon to ignore empty columns, preventing the system from interpreting blanks as delete commands.
- Third‑party listing tools must filter empty values — Platforms that automatically translate spreadsheet rows into API calls need to be configured to omit null entries for protected attributes, or they will repeatedly hit the error.
How to Resolve Error 90189
- Read the error details — Locate the attribute name highlighted in the message; for example, “Attribute ‘Brand’ cannot be deleted from the record” tells you the brand field is the blocker.
- Confirm the attribute’s requirement — Open the category‑specific flat‑file template or query the Product Type Definitions API; if the template marks the field as “required,” it cannot be removed.
- Supply a valid value instead of blank — Replace the empty cell with the correct brand name, such as “Acme Tools,” and re‑upload the file so Amazon receives a proper value rather than a delete request.
Analysis & Recommendations
Why This Matters
When Amazon treats a blank required field as a delete request, the entire feed is rejected, causing costly delays in price adjustments and stock updates. Using Partial Update or filtering nulls restores workflow continuity and prevents revenue loss from missed price changes.
Key Takeaways
- Error 90189 is triggered by null or empty values for catalog‑protected attributes such as “Brand”.
- A 5,000‑SKU bulk upload with empty required columns generated dozens of 90189 errors, halting the batch.
- Enabling the “Partial Update” option tells Amazon to ignore empty columns, preventing accidental deletions.
- Third‑party listing tools must filter out null entries before calling the Listings Items API to avoid repeated 90189 blocks.
Recommended Actions
- →In Seller Central, open the category‑specific flat‑file template (e.g., Home & Kitchen) and confirm required attributes; never leave those columns ...
- →When uploading a feed, select the “Partial Update” flag in the upload settings to have Amazon ignore empty, non‑required fields.
- →Update your SP‑API integration code to strip any key‑value pairs with null or empty strings before sending the payload to the Listings Items endpoint.
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