To add Ship to GSTIN while creating ewaybill, please follow below mentioned steps:
Step 1: Please go to Sales >> Invoices >> Search invoice >> Click on “More” >> Create E-way bill.
Step 2: Enter all required details , add the Ship To GSTIN and Click on Create e-way bill.
Note: The Ship To GSTIN is required only when the transaction type is selected as “Combination of 2 and 3” and “Bill To – Ship To”.
If the customer is unregistered, kindly enter “URP” in the Ship To GSTIN field.

