Mobile applications
The same principle applies here as in personal accounts. When registering in the application, add a field for subscription.
Social media
Facebook already has a subscription form, you just need to customize it for yourself. , for example, VKontakte, you can add a subscription link in the description and community links or in a pinned post. In Instagram, you can add an active link in the profile.Agree with partners on a mutual recommendation for subscription in a letter. For this, you can allocate a separate letter or make a banner in the body of the letter. For advertising, choose partners in related, but not competing niches.
Cross-promotional mailings work well, but you shouldn’t send your mailing to whatsapp number list someone else’s database or make a layout completely stylized as your brand without mentioning that you are a partner of the brand the person has subscribed to.
For example, imagine that you are subscribed to a cosmetics store. You receive a letter with the name of the sender of this store and the abstract subject line “30% discount on everything”. Now you are thinking about getting a long-awaited discount on a cosmetic product that you wanted to buy in this store. You open it and there is a mailing from some clothing store. This will probably cause dissonance in you and you will want to send the letter to spam, because it is unclear how this brand’s mailing ended up in your inbox.