BS BOPF: “Changes could not be executed” after data update

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Symptom
Changing data via Local Consumer Proxy or from User Interface the Business Object Processing Framework (BOPF) responds with message “Changes could not be executed”.
In addition a sync notification is reported back, what is wrong.
Other terms
BOPF; Transportation Management; TM; Changes could not be executed
Reason and Prerequisites
Program error in Lock Buffer
Solution
Implement the correction from the correction [...]