[API] lastmodifieddate not updated when added a contact to a list

New Member


We’ve noticed that the lastmodifieddate is not getting updated when the user is added to a list in Hubspot. This happens for all list alterations that don’t include any other alterations to the contact:

  • manual addition to a static list
  • list import into a static list
  • creation of a dynamics list matching the user’s criteria

As a list additional is a modification an API user should be made aware of, we feel that it would make sense that the lastmodifieddate is also updated in these cases.
This is also the general behaviour we see with our other integration partners.

Thanks in advance for your reply.
Kind regards,

1 Reply 1
HubSpot Employee

The “Last Modified Date” property will update whenever a contact property get’s updated. List membership is not a contact property which is why the Last Modified Date property was not updated.