Bridge error: Property 'dimensions'

Good afternoon, hope you’re doing well!

We’re trying to send some products to Amazon but running into quite a few difficulties.

Many of the IDs are showing the following error:

“There are some attribute mapping errors related to the Sliding Motor category. Please map the missing/incorrect attributes in the Mapper to continue listing the SKU:
[#1] Property ‘dimensions’ has not been defined and the schema does not allow additional properties. Path ‘item_dimensions[0].dimensions’, line 1, position 21696.
[#2] Required properties are missing from object: height, length, width. Path ‘item_dimensions[0]’, line 1, position 21683.”

There’s nowhere to enter width, height, and length in the mapper.

Has anyone dealt with this before?

Thank you