If I unblock someone on WhatsApp, will they receive messages - briefly?
If you unblock someone on WhatsApp, they will not automatically receive any messages that were sent while they were blocked. However, they can see new messages sent after the block is lifted if your privacy settings allow it.
If I unblock someone on WhatsApp, will they receive messages - in detail?
When you block a contact on WhatsApp, the communication between you and that person is effectively severed. All messages sent to or from the blocked contact are not delivered, and neither party can see any new activity in the chat. However, if you decide to unblock this individual, it's important to understand how message delivery works in this scenario.
Firstly, unblocking a contact does not retroactively deliver messages that were sent while they were blocked. In other words, any messages you or the blocked contact attempted to send during the block period will remain undelivered. This is because WhatsApp's system does not store and forward these messages once the block is lifted.
Secondly, after unblocking, future messages sent by either party will be delivered as usual. The chat history prior to the block will still be available in your conversation thread, but any attempts to communicate during the block period will remain undelivered.
It's also worth noting that the other person will not receive a notification indicating that they have been unblocked. The only way for them to know is if you initiate a new message after unblocking them, which they will then receive.
In summary, unblocking someone on WhatsApp allows future messages to be delivered normally. However, any messages sent during the block period will not be delivered retroactively.