Predicting customer sales

Hello

I would like to have your help on a topic of forecasting sales data of our customers.

I have a database where there are our customers, their turnover in each marketplace and the date of sale.

From this data I want to forecast the turnover of each customer in each marketplace for the next 5 months.

The workflow I have built does not allow me to make the forecast for the next 5 months and I have looked at knime Hub but none of the .

The history of my data is from January 1, 2020 to February 28, 2021.

I would like to have your help on a modeling method to do this.

Thank you for your help!