Hello,

I'm using your DEMO version to test to make sure I can print a blank stock check from QB online. Everything is setup in your program and the test check works great. When attempting this using a real check in QB online I get to the very end and it gives the following error:
Not valid Check Format.

Can you assist me with why this is happening?

Thanks!

Are you using QuickBooks online version? If yes, please follow this guide. ADOBE or ADOBE compatible PDF reader is required to print checks correctly.

QuickBooks Online Check Printing: PDF Driver Settings
https://www.halfpricesof...line-checks-printing.asp 

If you still see this issue, please feel free to contact us again. We will support further.

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