Thursday night saw a tenth month wait to find out Lucy Beale's murderer conclude as it was revealed her half-brother Bobby had killed her on Good Friday of 2014.
A total of nine people have complained about the episode and lead up, four directly to the BBC and five to TV watchdog Ofcom.
Some have complained that BBC 'misled' viewers over the plot and gave out 'false information' about the fictitious soap.
But one complaint was over the fact there was no helpline for those affected.
As with any complaint to Ofcom, the watchdog will evaluate the objections and decide whether or not to launch an investigation.
Meanwhile, social data has revealed that last night's EastEnders was the most tweeted about soap moment ever with over a MILLION messages posted during the two shows.
520,000 tweeted during the special flashback episode alone as the killer was finally confirmed.