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## Summary
`Whatsapp::IncomingMessageBaseService#attach_location` builds a
`fallback_title` by concatenating `location['name']` and
`location['address']` with no length cap, then stores it directly into
`Attachment#fallback_title`. `ApplicationRecord` enforces a generic
255-character limit on string columns, so any WhatsApp location whose
`"#{name}, #{address}"` exceeds 255 chars (a common case for Google
Places that include a long full address) raises
`ActiveRecord::RecordInvalid` deep inside the Sidekiq job. The message
and attachment INSERTs are part of the same transaction, so the whole
thing rolls back. Sidekiq retries once; the retry dedup-skips the wamid
silently and exits without an error. **Result: the message is
irrecoverably lost — no row in `messages`, no entry in the UI, no
outgoing webhook, no clue for the operator.**
Confirmed in `v4.13.0`, `v4.14.0`, and `develop` (commit `f33e469`,
2026-05-20). No upstream issue found before opening this PR.
## How to reproduce
1. From WhatsApp, share a Google Place whose `name + ", " + address` is
> 255 chars. The Spanish business address `Gremi de Fusters, 33,
Edificio VIP Asima, Piso 2, Local 2, Norte, 07009 Polígon industrial de
Son Castelló, Illes Balears, España` (132 chars) used as both `name` and
`address` is enough.
2. Sidekiq logs:
```
ERROR ActiveRecord::RecordInvalid: Validation failed:
Attachments fallback title is too long (maximum is 255 characters)
```
3. The `messages` table has no row. The conversation UI shows nothing
for that timestamp.
4. The first retry "Performed" successfully but creates nothing — the
dedup-by-source-id silently swallows the failure.
## Fix
Cap the existing concatenated title at 255 chars via `.first(255)`.
Minimal change, no behavioural difference for any message shorter than
the limit, prevents the silent data loss for any longer ones.
```diff
- location_name = location['name'] ? "#{location['name']}, #{location['address']}" : ''
+ location_name = (location['name'] ? "#{location['name']}, #{location['address']}" : '').first(255)
```
## Alternatives considered
- **Increase the validation limit on `Attachment#fallback_title`**: more
invasive; would touch other inbound channels and possibly require a DB
column change.
- **Use `name` alone (no concat)**: cleaner semantically (in many real
payloads `name == address`), but changes user-visible behaviour. Left as
a follow-up if desired.
- **Truncate with ellipsis**: cosmetic only; deferred.
This PR is intentionally minimal so it can be merged on its own.
---------
Co-authored-by: Sony Mathew <sony@chatwoot.com>
Co-authored-by: Sony Mathew <2040199+sony-mathew@users.noreply.github.com>
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