Question about Dreame L10s Pro Ultra Heat

I have been using my L10 Pro Ultra Heat for a month and the detergent supplied (AWH7 - 200ml) has now been used up. Unfortunately I could not find any AWH7 detergent online. The only detergent available is AWH6, but this is added to the fresh water tank and is not intended for the detergent tank.
@Digitec/Galaxus or Dreame_Switzerland can you please recommend a suitable cleaning solution?

Good day
The accessories including cleaning agent are on their way and will be available soon.

So the cleaning solution lasts a very long time. I've probably topped up the water tank around 3 times now and the cleaning fluid tank has probably only used up 10-20%, if that.