Abnormal behavior of READ_TEXT for PO text in ME23N

Hi SAP Gurus,

I am facing the following issue in reading PO text from ME23N.

I am using function module READ_TEXT to read the text.

For the first time the function module is not reading the text.

If I edit the text and save, Then the function module is working.

Screen Shots given below.

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Regards,

Pavan.