Hello there @info-natureal-ae!
Let's go ahead and create a bill so you can enter your expense to be paid in the future.
In addition, here's an article you can read to learn more about how you can enter a pay a bill: Enter and pay bills.
Lastly, I've also included a reference here for ideas about what other expense transactions you can enter in the system: What is the difference between bills, cheques, and expenses?
Keep me updated in the comments if you have any other concerns. I'll be around to lend a helping hand.