How do I change a Member's Paid to date if it is greyed out?

The paid to date of a member is determined by either

1. The paid to date of the member which was uploaded in the first place. In this case you should be able to edit it in the member's record on the Organisation tab by simply changing the paid to date (it won't be greyed out)

2. The paid to date on the Invoice which contains the membership period. In this case the member's paid to date will be greyed out. You need to look at the Member's Statement and find the number of the invoice containing the membership renewal, double click on the line item containing the membership renewal charge and you will be able then to edit the paid to date on that page. Then Save the page and then Save the Invoice. This last step is IMPORTANT. The change you made will then flow through to the member's record.