I am getting multiple messages in different queues and I am also using document_id to avoid duplicates values. But the problem with docuemnt_id is, it is overwriting the existing data with a new one But I want to fix one field that cannot be overwritten. In this field I am getting some information first time after that it is empty I want to store that information just to avoid missing that information.
Let suppose first time I am getting
SMS:"Hello World How your",
Next time I am getting SMS:""
document_id replaced the information with empty.