doubt in using replace statement

Hi all,

I have a requirement where user will enter more than 1 label no in a screen, which will be populated internally in a table by SAP with ## for every ENTER button pressed by the user. the internal table populated by SAP will be having values like this. 11111111111##22222222222##3333333333

I need to separate the values from ## and move it to another internal table. I used replace statement to replace ##. But its not working. I dont know what could be the problem. Can any one suggest me in doing this.

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Regards,

Buvana