Background sync

Background sync is a mechanism that reliably 'completes' what was started offline: the user placed an order/submitted a form/changed data without the network — the action is queued, and when connection appears the system automatically sends it to the server (in the background where possible, even if the app is not open). The goal is that nothing is lost and the user does not do work twice. Honestly about OS limitations, this is key: background execution is strictly controlled by the operating system for the sake of battery and privacy. On iOS background tasks are especially restricted — the system itself decides when to let the app work, so sync may happen with a delay, at the next app opening, not 'to the second'. The exact moment of background sending cannot be guaranteed — that is a platform limitation, and we design the mechanism to be resilient to it (retries, sending on open) rather than promise instantaneity. Honestly about conflicts: on sync, offline changes may collide with server changes — conflict-resolution logic is needed (who 'won', merge, notify the user). We build this in honestly rather than pretend conflicts do not happen. Honestly about reliability: we make the mechanism as resilient as possible (queue, retries), but '100% real-time delivery' in the background is technically not guaranteed — especially on iOS. Honestly about the combination: background sync works on top of offline capabilities (841). Honestly about the effect: fewer losses and repeated work; we do not guarantee direct sales growth. Honestly about access: access to the code/server side is needed. An important boundary: this is sync; offline access is 841, push in a PWA is 843. Picture this: instead of 'an offline order was lost' — it sends itself to the server when connection appears. The base price starts from 15,000 ₽ (depends on scenarios).

• Offline actions (order, form) are lost and have to be repeated.
• The user is unsure whether their data reached the server.
• No logic for what to do with the accumulated on reconnection.
• Data changed offline and on the server conflict.

• A queue of offline actions with auto-send on reconnection
• Background sending where possible (accounting for OS limits)
• Retries and resilience to network failures
• Sync conflict-resolution logic
• Sync-status indication for the user
• Indicating boundaries (background limited by the OS, especially iOS; not instant)
• A link with offline capabilities (841)
• Handover and review with you

• Offline actions are not lost and send themselves to the server
• Less repeated work and user frustration
• Sync conflicts are resolved deliberately
• A resilient mechanism (background instantaneity — not a guarantee, especially iOS)

• We determine which actions need syncing; collect access
• We set up the queue, retries, background sending and conflict resolution
• We test connection loss/return scenarios, honestly set boundaries with you

• Will data sync instantly in the background?

  Not guaranteed, and that is honest. Background execution is strictly limited by the OS for battery and privacy; on iOS especially — the system itself decides when to let the app work. So sync may happen with a delay or at the next app opening, not 'to the second'. We make the mechanism resilient (queue, retries), but the exact background moment cannot be promised.

• What if data changed both offline and on the server?

  That is a sync conflict, and we build it in honestly: resolution logic is needed (whose change takes priority, merge or notify the user). It cannot be ignored — otherwise data is overwritten or lost. We design conflict resolution for your scenarios rather than pretend conflicts do not happen.

• Is this the same as offline capabilities?

  Related, but not the same. Offline capabilities (841) are about access to data and working without the network. Background sync is about reliably sending accumulated offline actions to the server on reconnection. They usually go together; we will honestly say whether you need both.