Open the T4A Processing Area
From the Accounting menu to the Menu.
- Select Year-End Processing.
- Click Create T4A Slips.
Access the Current T4A Form
- In the list of T4A slips, Click to the last record.
- Open it to view the most current T4A processing form.

Select the Agent to Update
- In the T4A form, locate the Agent field.
- Click on the agent whose SIN needs updating.
Edit the Contact Record
- In the Contact field, click the Action button.
- Choose Open Relationship from the available menu options.
Update the Social Insurance Number
- In the relationship record, select the Social Insurance Number field.
- Enter the correct SIN.
- Click Save.

Refresh and Save the T4A Form
- Return to the T4A processing form.
- The form should auto-update with the new SIN.
- Click Save to finalize the updated T4A slip.

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