Hi MIKE263
Being able to link other programs is one of the ways QuickBooks Online encourages you to customize your experience to best assist your needs. I can help you with getting a work order program working in QuickBooks Online.
In order to find and use a work order program with your QuickBooks Online program you simply need to go to Apps on the left hand side. From there you can look through tons of apps that are compatible with QuickBooks Online and cover all your needs. If you already have a program you wish to sync I suggest contacting the developer to see if they are compatible and have the ability to sync together.
If you have further questions I'd recommend contacting our support team using one of the following options.
Schedule a Callback or Chat: click (?)Help in the upper right > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat. Support is available from Monday to Friday between 9 a.m. and 8 p.m. ET.
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Take care.