Hi _G_,
Thanks for reaching out to us here. The features you've grown accustomed to in QuickBooks Desktop, are also available in QuickBooks Online. Having transaction numbers on your forms, and notifications when a number has been duplicated can be accomplished effortlessly. I'd be glad to help!
Let's get started by enabling transaction numbers on your forms. Here's how;
1. Open your Settings ⚙ and select Account and Settings
2. Click on the Sales tab
3. Hit the Edit in the Sales form content section
4. Turn on Custom transaction numbers
5. Hit Save
Follow these steps to turn on the warning when duplicate transaction numbers are used;
1. Open Account and Settings
2. Select the Advanced tab
3. Click on the Edit in the Other preferences section
4. Turn on Warn if duplicate cheque number is used and Warn me when I enter a bill number that’s already been used for that supplier
You're all set!
Should you require additional assistance, please don't hesitate to contact us outside of Community. It would be our pleasure to work with you directly and ensure you're able to accomplish your QuickBooks goals as soon as possible!
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