Hey donal-johnson1. Thanks for reaching out to the community for this. Allow me to help and addressed your concern about Memorized Transaction in QuickBooks Online (QBO).
The memorized transaction is only available in QuickBooks Desktop. However, if you're using QBO Essentials and Plus, you have the option to set a recurring transaction for customers and vendors (such as checks, bills, invoices, sales receipts, estimates, etc).
To create a recurring template, here's how:
Select the Gear Icon. in the top right corner
Under Lists, select Recurring Transactions.
Select the type of transaction to create, and select OK.
Enter a Template name.
Choose a Type — Scheduled, unscheduled or reminder.