applications – Looking for an app that can send text messages for my company. ideas?

I’m an mc mechanic, For the different jobs we have order numbers and of course a price when the job is done, I then send a text message to the customer looking like this: “your order 71111 is done and costs 500$”

I’m looking for an app that can simplify this, for example one row that i enter the order number and one row for the price, and of course the customers phone number. And then hit send. It takes up a lot of time to copy and paste and manually change everything. I have tried using android studio to make my own app but It’s too complicated for me. Any ideas?