Are Custom Mappings always two-way?


The custom mappings will sync in the direction you have set up in the configuration of your connection, so this could be two-way or one-way.

However, there are some exceptions where a custom mapping can only sync one-way:

  • When certain contact fields are not allowed to be modified through a third-party (PieSync).

  • When we can only read or push from and to a certain field.

Below is an example of a field that can't be modified through a third-party and therefore only syncs one-way (→).

Bear in mind that,  when you have your connection configured in the other direction (←), that direction will win. 


Want to learn more about our newest feature Customizable Field Mapping? Find out here and don't forget to read our blog post!