Although we have a patch for this, It only attempts to update data where it’s sure about this (it could have been misspelt earlier).
Manual intervention could be required to recheck if the address and /or party masters are correct.
Still, if you feel it’s a genuine bug, report it with full details, and we will act on it.
It could be ERPNext issue, as taxes and totals calculation is not part of India Compliance.
Re-validate with different accounts (other than GST) and create an appropriate issue.
Most likely not.
- You can have default tax rate in Sales / Purchase taxes and charges template.
- You may need item taxes only where its different → Other than default.
Many other posts cover how to set up taxes in detail.