FI/CO Validations are procedures that can assess the validity of FI/CO documents
before they are posted. These procedures run during the transactions of creating
or changing an FI/CO document. According to the configuration, they issue
messages to the user. The result of these messages is either just information
or warnings that the user can override, or a hard error that will block the
transaction from being completed before the data are corrected.
The transactions where FI validations may apply encompass all transactions
that generate accounting documents, i.e., the standard FI transactions (General
Ledger, Accounts Payable, Accounts Receivable), as well as others such as
material movements, cost settlements, etc.
The transactions where CO validations may apply encompass all transactions
that generate costing documents, i.e., pure CO transactions (e.g. ,cost assessment,
distribution, reposting) as well as all other transactions that do secondary
CO posting (e.g. sales, purchasing, FI transactions).
In both FI and CO, validations are distinguished into three kinds:
(a) Header validations: check data in the document header, e.g. document type,
document date, posting date/period, user name, transaction type etc.
(b) Line item validations: check data in each document line-item, e.g. GL
account number, cost object, possibly in conjunction with header data (see
above).
(c) Document validations: check data in the whole document, e.g. GL account
combination between two or more line items.
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