- If you are connected to Salesforce your HubSpot property may be getting changed back to its original value by Salesforce.
- Most Salesforce field mappings by default are set to only update if not valued in Salesforce. In your situation a property change may have been sent over to Salesforce, but Salesforce didn't change its existing value, and then passed its unchanged value back to HubSpot.
- You can set Salesforce field updates to "always", "never", or "only if not valued." These settings can be managed on a per field basis from the Contact Field Mappings screen in HubSpot (For a full explanation of the update rules, please see What do the different update rules for my field mappings mean?)
After navigating to the Contact Field Mappings screen (Profile Picture Dropdown > Integrations > Salesforce Settings > Contact Field Mappings), click the cog icon for the field you would like to edit, and choose edit: Next, choose the new Update Rule, and click Save Mapping:
Next, choose the new Update Rule, and click Save Mapping: