Editing offers
You can edit an offer at any time, whether or not it has been used in a contact process, depending on your roles and permissions.
After an offer is used in production (once it has been assigned to a cell in a flowchart that has been run in production and logged to contact history), you can edit only the offer name, description, and default values for parameterized offer attributes. This restriction ensures that Campaign can track the exact offer details for offers that have already been made.
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Select Campaign > Offers.
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Click the Edit icon Page with pencil icon on the offer Summary page.
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Click Save Changes.