Medium Trick
One way to sell to Daniel without disturbing your trade depot is to put the products at the end of it.
Sale to Daniel in SCBI

In the game, selling products to the neighbor Daniel is sometimes a good idea to earn coins or to get rid of products that are difficult to sell, or when we can't put promotion in our trade depot.

Keep in mind that your trade depot has a maximum capacity of 32 slots (and each slot can hold up to 5 items).

Whatever you are going to sell to Daniel,, put it at the end of your trade depot. Do NOT put the products for Daniel at the beginning of your trade depot.

Why?

Because Daniel can only take the products that you have put in your trade depot after 48 hours of you putting them there.

The video below shows an example of where to place 20 donuts to be taken by Daniel inn your trade depot:

Note: Daniel takes it right after 48 hours of placing them.