Why is the posting date changing for certain contributions?

Symptom:

When you post a contribution, the posting screen changes the date of the contribution to another date.

Explanation:

This happens when the fund you're posting to has a start date or end date. Start and end dates limit the dates that you can post contributions to some funds. If you try to post a contribution before the start date or after the end date, the posting screen will change the date.

Resolution: 

1. To see the fund start and end dates, go to Offering: Funds. The fund list will show the start date of each fund. 
2. To change or remove the start date, you can edit the funds with the following steps:
   PSFS Offering - Funds: How to edit a fund's details