If our prepress team sent you this error message, some text or images in your artwork are too close to the edges of the product and we kindly ask you to modify your artwork and upload new files.
Due to the nature of the Pulp and Wood stocks, shifts of up to 0.125" can occur, which might result in text/images too close to the edges being cut off. We take all necessary precautions to avoid as much shifting as possible, however, this risk is higher with Wooden stock and any paper stock 20pt or thicker.
For this reason, we recommend a larger margin (or safety/padding area) of 0.25" from all trim lines (the edges) - that is 0.375" from the bleed.
Paperstocks that require a larger safety margin (0.25") are:
All Wood stock (including Smooth Wood)
27pt Cream Pulp
To learn how to set up your file correctly with bleed and safety margin in design software see:
Text too close to edges/safety margins.