I appreciate you for sharing the exact error message you've encountered, Himakar. I'll make sure you're able to sync the purchase orders to QuickBooks Online.
We have a separate and dedicated forum that handles API concerns for QuickBooks Online. This is the place where developers engage to discuss programming concerns. They can provide an accurate resolution to resolve the syncing issue.
Here's how:
- Go to https://help.developer.intuit.com/s/.
- Choose QuickBooks Online under What do you need help with?.
- Click Ask a Question.
- Log into your existing Intuit Developer Account or create a new one.
- Enter your concern.
- Click Ask.
Additionally, you can also visit the API Docs & Tools menu to find API topics that'll help you in completing your other QuickBooks tasks.
Please leave a comment below if you have any other QuickBooks-related questions or concerns, Himakar. I'm always here to help. Have a good one!