Importing Attachments with Dataloader.io

The example below shows you what your .csv file should look like with the fields which are required for this import. 
 

File Name is the name of the file that you would like to be displayed within your Salesforce org.
Body is the path to the file within your .zip file. 
Parent ID is the ID of the record you want the file associated with. This ID can be found by opening a record and obtaining the 18 digit ID from the URL like so: https://examplecompany.lightning.force.com/lightning/r/Account/0064x000003Dke5AAC/view. Alternatively you can create a report which displays the record name and record ID for a list of all the IDs.

Now that we have a .csv and .zip file, let's start by importing the Attachment!

1. To import your Attachment using dataloader.io, begin by going to https://dataloader.io/ 
2. Click Login with Salesforce
3. Select production environment and use your Essentials credentials to log in
4. Click New Task on the top left corner of the screen
5. Select Import
6. Ensure Insert is selected in the Operation section
7. Search for Attachment in the Object section
8. Select Attachment in the Object section
9. Click the Next button
10. Click the Attachment Zip button
11. Upload your .zip file
12. Click the Source CSV button
13. Upload your .csv file
14. Map your File Name .csv column to the File Name field
15. Map your Body .csv column to the Body field
16. Map your Parent ID .csv column to the Parent ID field
17. Click the Next button
18. If the edition of Salesforce that you are using is the Essentials edition, ensure that the option for API Mode has Use Batch API with 200 records per request selected
19. Click the Save & Run button
20. Click the Run button in the pop-up window

Once your import is completed, you can log in to your Salesforce org to confirm your files are related to the correct records.