Greetings from pixiv.
Thank you for using our service. As of November 25th, 2021, fans could send a message along with their co-request on the desktop and mobile versions of pixiv.
The Requests feature allows for fans to contribute to the requests of others by offering a creator the same amount for the same content, in what is called a "co-request".
Co-request messages allow fans to add an optional message to their co-request. The content of the message will be displayed in the request's details for both the creator and other fans to see.
You can send co-requests via the request's detail page.
This is possible both from the Requests tab on a creator's profile and the Requests main page. Please feel free to make good use of it!
The Requests main page:
Additionally, changes have been made to the payment page to go with the release.
Up until now, clicking the Co-request button would bring you to another page for payment.
Now, clicking the Co-request button will display a pop-up menu for your payment, with no need to be redirected to another page anymore.
Please refer to the FAQ if you have questions about Co-requests or Co-requests messages.
Thank you for your patronage with pixiv.