To track various funds and report on restricted donations, General Accounting Units (GAUs) in NPSP should be used. Here's a step-by-step guide:
Set Up General Accounting Units (GAUs):
Navigate to the App Launcher and search for "General Accounting Units".
Create GAUs:
Create new GAU records for each fund you need to track.
Provide names and descriptions that clearly identify each fund.
Link GAUs to Donations:
When creating or updating an Opportunity (donation), scroll to the GAU Allocations section.
Allocate the donation amount to the relevant GAU(s). This ensures that each donation is correctly attributed to the specific fund.
Run Reports on GAU Allocations:
Create reports that include GAU Allocation data to see how funds are being utilized and to ensure that restricted donations are tracked correctly.
Automate Allocations (Optional):
Use NPSP settings to define default GAU allocations for specific types of donations to automate this process.
By using GAUs, the nonprofit can effectively manage and report on restricted funds, ensuring compliance and transparency.
Reference:
Salesforce NPSP Documentation: General Accounting Units (GAUs)
Salesforce Trailhead: Nonprofit Success Pack (NPSP) Overview

https://powerofus.force.com/s/article/SFDO-BP-Pardot-Basics-for-Nonprofit-and-Education

When using the Data Import Wizard with the NPSP Data Importer and noticing that the Mailing Street address field was missing on all records after import, one likely cause is incomplete data in the CSV file. Here's a detailed explanation:
Check the CSV File:
Open the CSV file that was uploaded.
Verify if the Mailing Street address column contains complete and properly formatted data for all rows.
Ensure Completeness:
Ensure that there are no missing values or improperly formatted addresses in the Mailing Street column.
Even a single missing value can cause the entire column to be skipped during import.
Re-import Data:
Correct any incomplete or missing data in the CSV file.
Use the Data Import Wizard again to re-import the corrected file.
Verify Field Mappings:
During the import process, ensure that the Mailing Street field is correctly mapped to the appropriate Salesforce field.
By ensuring the completeness and correctness of the data in the CSV file, you can avoid issues where fields are missing after import.
Reference:
Salesforce Data Import Wizard Guide: Data Import Wizard.