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We assume every End User Quote must have an opportunity created already.
Remove the Dealer Account and Salesperson fields from the Quote object.
Remove Price Book field from Quote
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Remove Opportunity section on Edit Quote Page
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Clean up Opportunity page by removing the following fields
QBO Changes
Remove Logic to search and create new Account from object
On the Edit End User Quote ?page:
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Hide the Customer section. The customer account is entered already on the opportunity. No need to search
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or
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enter a new account.
After creation of Quote, link the Quote for the opportunity from which it was launched.
Remove Opportunity Section from End User Quote
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Hide the Opportunity section. We don’t need to create an opportunity again.
Clean up the Opportunity page by removing the following fields