If you use a custom set of Salesforce Task types, you can map these to your Jiminny activity types. When your team then log tasks through Jiminny, they will be saved correctly and feed into any reporting or existing processes. If you use Events instead of Tasks, a similar process applies (just substitute task for event in the instructions).
Salesforce Setup
Within Salesforce, Administrators must first enable Field Level Security for Type fields to allow updates and changes to be reflected in both Salesforce and Jiminny. Follow the instructions below to make sure this is enabled.
Classic Edition
Visit Setup > Customize > Activities > Task Fields
Scroll down and click on the Type picklist
Click the Set Field-Level Security button
For each profile your team belongs to, tick the box next to Visible
Next, you can optionally show the field under the relevant page layouts:
Visit Setup > Customize > Activities > Task Page Layouts
For each layout you want it to show on, click Edit
Drag and drop Type from the Task Layout header into any area within Task Information
Lightning Edition
Visit Setup > Platform Tools > Objects & Fields > Object Manager
Scroll down and click on the Task object
In the left menu, click Fields & Relationships
Scroll down and click on the Type field
Click the Set Field-Level Security button
For each profile your team belongs to, tick the box next to Visible
Next, you can optionally show the field under the relevant page layouts:
From the previous step, click Page Layouts on the left menu
For each layout you want it to show on, click the layout name
Drag and drop Type from the Task Layout header into any area within Task Information
Jiminny Setup
Now Salesforce is configured, you just need to tell Jiminny which fields map together. For the mapping to work, the activity type in Jiminny must be named exactly the same as the API Name in Salesforce.
Remember, if the mapped fields are later renamed in either Jiminny or Salesforce and not reflected in both, the task logging will fail!