Issue updating EEW field in Trade Promotion Basic DataScreen

[crmabap]

Hi,

We have extended trade promotion screen in CRM_MKTPL transaction with a field using Easy Enhancement Workbench.We are facing the following issue.


When we insert values in the field, the value is written in table CRMD_MKTPL_BDINC correctly.
When we change value the row is updated correctly.
When we remove value the row is updated correctly.
When we write again, value the system writes a new line in table!



If we open the transaction a fresh each time and change the field values, it updates the values correctly, with out creating a new line in the table.

Please let me know, if you come across similar issue and how to resolve the same.

Reagrds