Phrase Engineering Change Management 
Use
This function enables you to carry out data changes for a particular key date using a change number. Each change number is valid from a particular validity date so that the data have a validity period in accordance with the change number.
When you change existing data, the EH&S system creates a change comment that contains the person responsible for the change, and the change date.

For further information on the R/3 Engineering Change Management component (LO-ECH), see Help
Prerequisites:
From the SAP R/3 System screen, you have created a change number under Logistics
® Central functions ® Engineering change management.Features
You can use engineering change management within R/3 phrase management to
You must enter the change number in the phrase import screen.
You must enter the change number in the initial phrase management screen.

Activities
You can do the following from within Phrase Management: