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ISU Material Serial Number to change?

Dear gurus!!

We have list of ISU materials which are all serialized, now the issue is while doing Good receipt, the warehouse personal enter the wrong serial number. Once the serial number is assigned to the equipment and is no longer edited. So now we need to change the serial number for the ISU material. We tried to use the T-code IQ02>>Edit>>Special serial no functions>>change serial number. ERROR u201CTHIS FUNCTION IS NOT PERMITTED FOR ISU EQUIPMENTu201D. Finally we canu2019t able to change the serial number. We have thousands of serial numbers to be changed, So can you please help me in this.

Method 1,

We do GI against 201 wrong serial number and do reversal 202 with correct serial number, still same wrong serial number with status u201CINSTLu201Dand (( correct serial number as status u201CESTOu201D or even some cases while doing reversal it say u201CSystem status PIAC is active (EQU 1090075)u201D )) so we canu2019t proceed from here.

Method 2,

We tried to create physical inventory and while entering the count, we key the correct serial number, now the system status for all new serial number entered is u201CESTOu201D and wrong serial still existing in the system, which shows the status of u201CINSTLu201D.

The above 2 methods is not working! Please advice me.

SAP GURUS PLEASE HELP ME

Regards

RS

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