JingjaiOps is fully bilingual. Every interface, PDF, email, and portal page can render in English or Thai. The language a person sees depends on their setting, not yours.
EN / TH toggle for staff
The language toggle lives in the top bar next to your avatar.
- EN — English interface, English-first PDFs.
- TH — Thai interface, Thai-first PDFs.
Your preference is saved to your user profile and follows you to any device.
Setting a customer’s preferred language
Each customer has a Preferred Language field on their profile. Set it to TH for Thai customers and EN for English-speaking customers.
This setting controls:
| Where | Effect |
|---|
| Quote PDFs | Bilingual layout with the preferred language listed first |
| Invoice PDFs | Bilingual layout with the preferred language listed first |
| Email subject and body | Sent in the customer’s preferred language |
| Client portal | Defaults to the customer’s preferred language on first visit |
| Receipt PDFs | Bilingual with preferred language first |
How bilingual PDFs work
Quote and invoice PDFs always show both languages side by side. The customer’s preferred language appears first; the other language appears beneath each line for reference.
This means a Thai customer sees Thai prominently with English as backup, and an English customer sees the reverse. There is no version where one language is hidden — every contract is fully understandable in both languages, which matches the spirit of the Thailand Electronic Transactions Act.
Portal language
The client portal has its own language toggle in the top right. The first time a client opens the portal, the language matches the Preferred Language on their customer record. They can switch at any time and the choice sticks for that device.
Item names from inventory follow your inventory language settings. If an inventory item has a Thai name set in Settings → Categories, that name appears for Thai customers and the English name appears for English customers.
Thai-specific behavior
Some things only behave correctly in Thai mode:
- Thai Tax Invoice (ใบกำกับภาษี) PDFs use Thai header text and Buddhist calendar dates.
- PromptPay QR codes in the portal display in Thai for Thai-language clients.
- Thai address formatting uses subdistrict / district / province order on PDFs.
- Thai number formatting uses commas as thousands separators (same as EN) but currency renders as
฿ rather than THB.
