Contact Form 7: how to add a room request?

Hello! Tell me, please, how to use Contact Form 7 to each application to assign the number? that is, to the letter automatically registered serial number.
July 9th 19 at 13:37
1 answer
July 9th 19 at 13:39
Put this plugin and then act on instructions.
ps they still have such extra tags (well it is at all)
OXOJeck , thank you! what you need! - Ayan commented on July 9th 19 at 13:42

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