@torabian, from an accounting perspective, private money and capital accounts of owner/partners are not the same thing. Capital accounts represent money inside the company that has been contributed by owners/partners to fund operations. To be considered private or personal funds, the money would have to literally come from your own pockets.
Expense claims are used to records payments on behalf of the company from personal funds. The claims are allocated to the appropriate expense account.
Anything paid from a company account should be recorded under the applicable bank or cash account, allocating the transaction to an expense account.
A purchase invoice only needs to be used if you will pay a supplier in the future. The supplier must be created first. Again, you allocate the transaction to an expense account. Manager automatically credits
Accounts payable for the supplier involved. After a purchase invoice has been created, you can Spend Money from a company account to pay off what you owe the supplier. Only then would you allocate a Spend Money transaction directly to