When the contract is in status Active, In active contract it's possible to change Financing Rates, Financing Period and . Principal Amount change is allowed also in Signed status.
All the changes you make are reflected in 3 places - Calculation Lines, Payment Calendar, Financing Contract Changes. For more information about general contract changes see attached video:
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At the beginning, you must find the Contract, on which you want to change Principal Amount. On dashboard click on Active and choose the concretely particular Contract.
Step n. 2
Then you will see Financing Card. Click on button Process and Change Principal Wizard.
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Note:
After realizing changes, it's necessary to update calculation through button called Calculation, which is situated in section Process. All of the changes you made will be reflected in the Calculator Lines, Financing Contract Changes and Payments Calendar.
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Follow up:
How to work with contract changes
How to change financing period