Survey assistant asking random questions not in th...
# supportn
Nisar
05/19/2026, 8:09 AMI have a specific set of survey questions.. for a nultilingual squad. The english assistant sticks to the script.. but hindi / hingligh assistant goes off onto a tangent asking totally different questions. How can I make the assistant folow the script??
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Teemah Rhodes Praise
05/19/2026, 8:22 AMThis usually happens when the prompt isn’t strictly enforced across languages. I can help you fix it by tightening the system instructions, adding “no deviation from script” constraints, and implementing a structured survey flow (step-by-step or slot-based) with validation. Also, we can add language-specific guardrails so Hindi/Hinglish follows the same schema as English. Happy to take a look and fix it quickly.
@Nisar
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Shaunak
05/19/2026, 9:13 AMHi, thanks for reaching out.
Shaunak
05/19/2026, 9:13 AMCould you please provide us with the call IDs?
Shaunak
05/19/2026, 9:13 AMThat would help us investigate this further.
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Nisar
05/19/2026, 11:22 AM@Shaunak call ids:
perfect response: 019e3eed-c472-722d-8ce2-2fcba788d9af
deviant responses:
019e3ef2-2dfe-711e-a34a-98a67aca9d26
019e3f4f-b28c-7000-8e24-2c5fefd38834
s
Shaunak
05/21/2026, 4:57 AMHi,
Thanks for sharing those call IDs - that made it easy to trace the issue.
Shaunak
05/21/2026, 4:57 AMAfter looking into both assistants, the cause is a configuration mismatch rather than a platform bug. Your English assistant has the full survey script in the system prompt, while the Hindi/Hinglish assistant currently has a system prompt of just "You are an assistant." - so the LLM has no survey structure to follow and improvises as a generic assistant instead.
Shaunak
05/21/2026, 4:57 AMThe fix is straightforward: open the Hindi assistant (01d1c1f8-88ed-468f-9ee6-1e3cfce968eb) in your Vapi dashboard, replace the system prompt with the same survey script from your English assistant, and adapt the language to Hindi/Hinglish while keeping the same structure - identity, Q1 through Q5, and closing. Once that's in place the Hindi assistant should follow the script just like the English one does.
Shaunak
05/21/2026, 4:58 AMAs a longer term suggestion, you may want to consider consolidating into a single multilingual assistant with language-switching instructions in one prompt. This avoids configuration drift where one language gets updated but others are missed, which is exactly what happened here.