Error: Variation cannot be deleted during restricted revise. (#21916608)

Error: Variation cannot be deleted during restricted revise. (#21916608) 
Variation cannot be deleted during restricted revise.

Error: Pictures cannot be removed. (#21916734) 
Variation pictures cannot be removed during restricted revise.

If you see either one of the errors above about variations that can’t be removed, this generally means that you changed a variation attribute and/or image but there have already been sales for this item on eBay.

This could happen for example by changing size attribute values like "small", "medium" and "large" to S, M and L. While it might seem like a good idea to do so, eBay won't allow you to make such changes for items which already have sales. Changing a variation attribute like this is the same as deleting the old variation and replacing it with a new one - and this is equally impossible with eBay once an item has had sales.

The only way to fix the errors above would be to end your listings as relist them again. This is also what you will have to do when you change variation attributes in the future.