How can i manage sell invoice

sell invoice is not my income it is a sell on credit , but it add to my income. how can i manage

get accountant, you need to understand basic accounting.

Are you asking how to sell on credit? See this Guide: Manager Cloud. Or are you complaining that sales invoices add to income when you think they should not? If the latter, that is the difference between accrual and cash basis accounting. See this Guide: Manager Cloud.