Cannot delete messages

Hello all
I just joined this forum and I am new to the SIM800L unit
I cannot delete messages
Has anyone had the same problems and how did you resolve the issue?
Also is there a reset command that would erase all messages?

Many thanks in advance for any help
Regards
Chris

Where do you want to delete the messages?

If you read the messages via serial Port in Python it’s port.flushinput()
In minicom press ctrl+A and C