if Pincode and Shipping Address is showing incorrect while generating e invoice, you can check and follow given steps:
Step 1:Check in party master press alt +m,open in modify mode,,pincode and Address should be correctly menitoned, if not mentioned, you have to mention it manually,then save the Party Master.
Step 2:Check location and pincode in Billing Shipping window should be correctly mentioned, if not then you can correct it manually.
Step 3:Check in transporter Details window location and Pincode should be correctly mentioned.
Step 4:After checking all those things you can generate e invoice again then it will be generated successfully.