How to pay rent which is paid more than the Lease rent for that month

Hi Team,

We have a scenario where Lease is created with amount 950,000 rent to be paid for month for a period of Lease 1 year(Jan-18 to Dec-18)

Till June-18 the amount is paid as per lease,but in july they have paid an excess amount of 50,000(950,000+50,000).Again in August they have paid 950,000

How can we achieve this scenario from property manager to create the invoice as we are in data migration for old data..Else for remaining amount 50,000 should we raise a standard invoice in AP for that supplier.

Any ideas on this.

Regards

Akhilesh