Hi
Can you please give more details for your question.
1. Where have you created the custom field ? In Change master or Engineering Record.
2. What are the various status your Engineering record is having ? At what status you want this
field to be populated ?
3. How is Change master created automatically ?
4. have you thie Change master in Engineering Record ?
If its custom field then it cannot be done by standard BADI.
Cheer's
Satish