How to find the check no associated with the payment made towards an invoice

Hi there,

Thanks for contacting us here. QuickBooks is a versatile program that helps you bring your finances into perspective. I'll be happy to share more info so you're on the right track with accomplishing your QuickBooks goals. 

The program also gives you the flexibility to search for your transactions using the Advanced Search feature. In order to take advantage of this feature, click on the Magnifying glass at the top right of your account > once the search drop-down appears, click on the blue link that says Advanced Search > on the search filter, select the matching criteria such as the cheque amount.. After hitting Search, you'll be able to see the cheque you're looking for and the cheque number as well. In case you still need further assistance, feel free to contact our support team using the contact details below:

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

I encourage you to try this out and let me know how you make out. I'll be one message away in case you need additional support.