The invoice shows incorrect GST Details in BUSY,If your company GST details is showing incorrect,so to resolve this you can follow given steps:
Step 1:Go to Administration menu,
Step 2:Click on configuration,
Step 3:Click on Features and Option,
Step 4:Click GST/VAT tab, Here you can check your GST Number and other details.
If your Party GST is showing incorrect so you can check these things:
Step 1: Open that Party master in modify mode,press ALT + M,
Step 2: Here you can Check and validate GST number is it validated or not.