> For the complete documentation index, see [llms.txt](https://docs.yaeris.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yaeris.com/services/whatsapp-blasting-service/unofficial-whatsapp-button-blasting.md). # Unofficial WhatsApp Button Blasting WhatsApp button blasting via unofficial API offers up to 90% or 100% delivery-rate packages, with file size limits of 5Mb video and 1Mb images/PDF. Unofficial blasting WhatsApp Blasting *with* button * **Up to 90% delivery rate** package * Our server only able to deliver 0% to 90% delivery rate. This is because of WhatsApp bans the sim card which will cause the message not being able to deliver to your recipients. * **100% delivery rate** package * When you sign up this package, you are entitled to blast additional 2 more times for free without editing your existing campaign. {% hint style="info" %} **Important Note**: Delivery rate means the percentage of messages actually sent out from our server. Not the percentage of messages received by your recipients. We do not have this information so we don't have the answer for you. {% endhint %} {% hint style="warning" %} **Important Note**: "*100% delivery rate*" package doesn't imply that all of your recipients will receive your message. Instead, it means that the percentage of messages actually sent out from our server. {% endhint %} All unofficial WhatsApp API Blasting with/without button are bound to its **limitation**. {% content-ref url="/pages/otBBkPcK0hJcQKa3H5az" %} [Unofficial WhatsApp Blasting](/limitation/unofficial-whatsapp-blasting.md) {% endcontent-ref %} ## File size limitation Maximum file size: * Video: 5Mb * Picture: 1Mb * Profile Picture: 0.5Mb * PDF: 1Mb ## Watch WhatsApp Button video demo {% embed url="" %} ## Watch this video on how to assign new users {% embed url="" %}