Thank you for posting your question here seeking guidance on data connectivity between QuickBooks Point of Sale and QuickBooks Online, dhavalkakadiya. I appreciate you reaching out through our community forum.
To directly address your inquiry - there's no native integration that allows direct syncing of data between the QuickBooks POS and QBO platforms.
However, there are third-party applications that offer services to establish connectivity and data flow between the two programs.
It's also important to note that QuickBooks Desktop Point of Sale has already been discontinued since October 3, 2023. Additional information about this is discussed here: QuickBooks Desktop Point of Sale Discontinuation.
You'll want to consider migrating to a new POS platform. QuickBooks has also partnered with the e-commerce platform Shopify to offer a point-of-sale solution.
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Please do not hesitate to continue leveraging our community forum for assistance if you require any further help managing sales transactions or bookkeeping in QuickBooks Online, dhavalkakadiya. We are always readily available to answer questions, offer guidance, and make sure you get the most out of using QBO.