You can still save your GSTR-1, @ho7.
Upon checking our records, I see an ongoing issue about unable to save GSTR-1 in QuickBooks Online (QBO). That is why you encounter this issue. I suggest reaching out to our Customer Care Team so they can add you to the list of affected users. From there, you will get a notification once this issue gets resolved.
To reach them, follow these steps:
You can also check out this link for more information: How and when can I contact QuickBooks Online India Support?. Ensure to review their support hours, so you'll know when agents are available.
In addition, you might want to run GST reports in QBO to help you review your transactions with GST.
You can always share your issues and concerns related to QuickBooks in this public space. Feel free to click the Reply button below to add some details. The Community and I will be here to help you.
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