validations and substitutions

[Former Member]

wht is validations and substitutions? and difference between validations and substitutions

thanks in advance

prem

[Former Member · Accepted solution]

Validations are used to check the conditions while posting a document in sap system.

Validation allows you to define your own individual checks for specific fields when a business transaction is being processed.

Each validation can contain up to 999 steps that each consist of a

Prerequisite

Check

Message

•Prerequisites and checks contain the same fields and have the same field processing options.

•You can use a message that has already been defined or you can create a new message for the validation.

•You can include up to four fields in a message. The '&' characters in the message are placeholders for the fields to be output.

path :In IMG under

Financial Accounting -> Special Purpose Ledger -> Tools -> Maintain Validation/Substitution/Rules -> Maintain Validation or

Transaction GGB0 for validation creation

T Code GGB1 for subtitution creation

Activation of validation and subtitution is GGB4

Substitutions are used to to substitute certain values GGB1

Prerequisite

Check

Message

for example to substitute a cost center or a GL account.