In Marketo, What is a good way to uncheck a value from a SFDC multiselect picklist?

[Allison_Isett1]

Hello,

Does anyone have a good automated solution that will allow me to take away a value from the multi-select field? Keep in mind that I don't want to null all values out because if other values exist I only want to remove one of them based on certain activity criteria.

[Helen_Abramova1]

There is another thread on that: How to de-select a value from a multi-select field?

[Grégoire_Miche2]

The webhook is the only way to go. Look into the thread whiwh link is provided by Helen

-Greg