Custom field will allow You to save information about clients buying habits, favourite products, services and other specific information. 

Use the data to make customers segmentation(for example, car VIN number), add deposit, add coupons to specific segment of customers or monitor the information and export data to email or Excel.

Create custom field 

Choose type String to add any kind of information.

Add specific information about Your client and save the changes.

Add car VIN number.

In customer section You can filter data using custom field condition. 

For example, find customer with specific car VIN number and in Actions add him 15 EUR coupon for next purchase.

In transactions section You can filter transactions using custom field condition.

For example, monitor statistics (in Header) how often customer uses Your service station . 

In real time measure how effective is Your loyalty campaigns to specific customer.