[FIX] l10n_in_edi: export without shipping details

Before this commit, when we create an export Invoice ( foreign customer )
without shipping details and processing the invoice, the system asks for
mandatory to provide details of shipping, which are not compulsory to
generate an E-Invoice in India.

After this commit, the system will proceed with E-Invoicing in case of
export without shipping details on the invoice form.

closes odoo/odoo#98737

Task-id: 2948375
X-original-commit: d2d68fcc6c019847b552f3a61b6fabebeb13a354
Signed-off-by: Josse Colpaert <jco@odoo.com>

addons/l10n_in_edi/models/account_edi_format.py

@@ -408,15 +408,23 @@ class AccountEdiFormat(models.Model):
         if is_overseas:
             json_payload.update({
                 "ExpDtls": {
-                    "ShipBNo": invoice.l10n_in_shipping_bill_number or "",
-                    "ShipBDt": invoice.l10n_in_shipping_bill_date
-                       and invoice.l10n_in_shipping_bill_date.strftime("%d/%m/%Y") or "",
-                    "Port": invoice.l10n_in_shipping_port_code_id.code or "",
                     "RefClm": tax_details_by_code.get("igst") and "Y" or "N",
                     "ForCur": invoice.currency_id.name,
                     "CntCode": saler_buyer.get("buyer_details").country_id.code or "",
                 }
             })
+            if invoice.l10n_in_shipping_bill_number:
+                json_payload["ExpDtls"].update({
+                    "ShipBNo": invoice.l10n_in_shipping_bill_number,
+                })
+            if invoice.l10n_in_shipping_bill_date:
+                json_payload["ExpDtls"].update({
+                    "ShipBDt": invoice.l10n_in_shipping_bill_date.strftime("%d/%m/%Y"),
+                })
+            if invoice.l10n_in_shipping_port_code_id:
+                json_payload["ExpDtls"].update({
+                    "Port": invoice.l10n_in_shipping_port_code_id.code
+                })
         return json_payload
 
     @api.model