Questions and problems

The Create and reserve button is greyed out

There is no open register, and reserving takes the customer's deposit. You can still click Create quotation and reserve it later, or open a register on a Point of Sale terminal (Opening the register) and try again.

I cannot collect the payment when I make the invoice

Collect now needs an open register. Without one the invoice goes on the customer's account; take the money later in Receive Payments, or open a register first.

I cannot give the deposit back at the return

Giving a deposit back needs an open register, like taking it. Open a register on a Point of Sale terminal, then confirm the return again. To take the items back without paying anything out, leave Deposit to give back at 0.

A product is not in the product list of a new rental

Only rentable products are listed. Give it rental prices in Inventory (… on the product's row → Rental pricing, then Save and mark rentable). See Setting up Rentals.

"No period prices — rate must be entered manually"

The product is rentable but has no price for any period. Add prices to it, or type the rate on the line.

My rental was saved as a quotation, not reserved

There were not enough free units for the dates. Open it, click Reserve and confirm the shortage if you want to reserve anyway.

How is "available" worked out?

The product's stock quantity, less the units on reserved or picked-up rentals that overlap the dates (including the padding hours from Settings → Rental).

Can I change a reserved rental?

No. Only quotations can be changed. Cancel the reserved rental and create a new one.

Can I cancel after pickup?

No. Return the items instead.

I cannot delete a rental period

A product still has a price for it. Remove that price from the product first.