Budget Posting Creation 
You use budget posting transactions to create and change fund budget.
You can update and transfer budgets, depending on your authorization.
Prerequisites
You have defined budget posting transaction types in Customizing
for Customer Relationship Management (CRM)
by choosing 
Transactions 
Basic
Settings Define Transaction Types
and made the following settings:
Selected Budget Posting as the leading transaction category in Definition of Transaction Types
Selected Budget Posting in Assignment of Business Transaction Categories
In the Customizing header you have:
Identified the budget posting type associated with the transaction type; Update, Transfer, Extend, Expiration, Renewal or Automated Budget Transfer
Indicated that you want the budget postings transaction type to use the approval process
You have associated an item category group to each budget posting
transaction type in Customizing for CRM by choosing Transactions
Basic Settings Define Item Category
Determination.
You have defined the number ranges to use for budget postings in
Customizing for CRM by choosing Funds Management
Budget Postings Define Number
Ranges for Budget Postings.
Optionally, you have assigned a fund determination profile to budget
posting transaction types in Customizing for CRM by choosing Funds Management Budget Postings
Fund Determination Assign Fund
Determination Profiles to ensure that the
correct funds are used in, for example, the budget transfer process.
Features
You create budget postings manually, automatically or by using an external application.
A wizard guides you through the budget transfer process.
You can transfer budget from one fund to many funds, from many funds to one fund, or from many funds to many funds.
The organizational data of the budget posting transaction determines the default currency of the budget posting. You can create a budget posting in a currency that is different from the default.
You can use availability control (AVC) for example, to ensure there is enough fund budget available to transfer budget to another fund.
You can create your own BAdI implementations for processing methods for actions with budget postings by implementing the Business Add-In: BAdI: Budget Posting Class Actions by choosing
CRM Funds Management
Budget Postings Business Add-Ins
BAdI: Budget Posting Class Actions .You can create enhancements for business transaction components that were created using the Easy Enhancement Workbench (EEW) by implementing the Business Add-In: BAdI: Enhancements for New Business Transaction Components by choosing
CRM
Funds Management Budget Postings
Business Add-Ins BAdI: Enhancements
for New Business Transaction Components .You can enhance the budget postings search to include external search fields by implementing the Business Add-In: BAdI: Budget Postings Search by choosing
CRM
Funds Management Budget Postings
Business Add-Ins BAdI: Budget
Postings Search .
Activities
You create budget postings manually by choosing Funds Management Budget Postings
New .