Related Questions:
What should I do if I edit a Group after the Contract is signed?
If I need to update a signed Contract, what should I do?
What's the best practice when editing a Group?
Answer:
For general best practice when editing a Group after the Contract is already signed, it would depend on factors such as:
How long ago was the Contract signed?
How significant are the changes to the Group?
Will the changes affect the concessions or terms of the Offer/Contract?
What is the hotel policy on using Addendums versus using a new re-issued version of the original Contract?
For more significant and larger changes:
Editing and re-issuing the contract would be standard practice.
The hotel sends a new version of the Contract reflecting the changes to the Group.
Examples of this would be when:
There are any updated changes to the concessions or rates.
There are updated cancellation amounts
There are any needed updates to the deposit amounts and payment schedule
When editing/including an updated Invoice
For less significant and smaller changes:
An addendum can less confusing for the client
For minor edits, letting the client know of the changes via Email, and having them confirm to have an email trail works
These suggestions would be for general use cases in the industry, and ultimately would depend on your judgement, or any Standard Operating Procedure for the property depending on the changes made.