Last action field in opportunity

[Ellen]

Dears,
I want to create one field in opportunity to track last action like : last time sending email to customer or last time calling to customer.
Anyone please guide how to create it.
Thank you

[tanya]

Hi,
create datetime fields with Entity Manager (Administration > Entity manager > Opportunity > Add field > Datetime).
Fill it with workflow (for each action entity - Update related record) or in developed hooks

[Ellen]

Thanks Tanya.