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Additional writable customer fields in COOIS output
From SAP Knowledge Base
The aim of this enhancement is to be able to save any text, e.g. a comment for a particular entry, by means of an additional button in a newly added field.
A BAdI and a Z program are used for this. No SAP standard code is modified. The text entry is only displayed once it has been called up again after the selection.
This is shown using an example for the "Component" list. An entry for components can be clearly identified with the order no., item no. and material number (component).