There are 5 call-up points which can be used for Substitution or Validation. Substitutions are also activated at the company code level and can be a constant value, a user exit or field-field assignment Call-up Points and Boolean Class A substitution is enforced if the prerequisite is met. Substitutions are used to substitute a document field value and consist of a prerequisite and substitution. They are used to examine settings, say, postings from company code to business area are made or not. The validation rules are activated at company code level. If the prerequisite is met and the check is not fulfilled, the message is displayed. Validation consists of perquisite, check and message. The situations may or may not apply for substitutions and validations in other application areas Introduction This document explains the situations for FI Substitutions/Validations exclusively. Restricting/Unrestricting Fields for Substitutions and Validations Note
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