Group messages with android and apple not working

You need MMS enabled by your Carrier for the SIM that you use and then enable it in your Settings. See the Pic below

You may not have an SMS/MMS plan enabled by your carrier for the SIM that you use on your device. Apple Inc does not provide SMS/MMS services.

You can send and receive Photos/Videos/GIFs to iPhone users through iMessage not through SMS/MMS

To activate iMessage and FaceTime using your Phone number

First, check to know whether you have an SMS plan enabled at least for One SMS*** with your carrier. Contact your Carrier (Cellular Service Provider) the agency that issued the SIM to you

If your iPhone is used with a carrier not found in the wireless carrier articles, make sure you can send and receive international SMS. (One SMS*** Only)

If you can't turn on or sign in to iMessage or FaceTime - Apple ...

*** You may not have an SMS plan enabled by your carrier for the SIM/eSIM that you use on your device. Apple Inc does not provide SMS services.

Types of group text messages

There are three types of group messages that you might see: group iMessage, group MMS, and group SMS. The Messages app automatically chooses the type of group message to send based on settings, network connection, and carrier plan. For example:

• If you and your recipients are using Apple devices and iMessage is turned on, then the group message is sent as an iMessage.
• If you send a group message to people who aren't using iMessage, then the message is sent as an MMS or SMS message.

Send a group text message on your iPhone, iPad, or iPod touch - Apple Support (IN)

This worked for me. Thanks.

So after a while, this fix worked for me. Might give it a try.

Log in to your Verizon account. Select "Account" at the top of the screen-"My Plan"-"Blocks." After selecting the appropriate line, select "block services"- then toggle on "block picture and video messaging." After saving, wait a minute or two then toggle it back to off. After everything saves, a phone restart may or may not be necessary.

This is after you verify that MMS Messaging and Group Messaging are toggled on in your iphone Messages settings.

This seems to reprovision sms/mms without having to call in.