https://community.blueprism.com/t5/Product-Forum/Write-Collection/m-p/53506#M8165 Hi roberto.m.chacur, This is because you have given invalid cell reference in the ""Write Collection"" action..check its value ...(cell starts with A1,B1 etc etc) hope this helps <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span> Thu, 12 Oct 2017 10:30:00 GMT Anonymous 2017-10-12T10:30:00Z https://community.blueprism.com/t5/Product-Forum/Write-Collection/m-p/53505#M8164 Hello! Im trying to write a collection in a new workbook, an error appears. "Internal : Could not execute code stage because exception thrown by code stage: Exception from HRESULT: 0x800A03EC" How can i fix this problem? Wed, 11 Oct 2017 23:41:00 GMT https://community.blueprism.com/t5/Product-Forum/Write-Collection/m-p/53505#M8164 Anonymous 2017-10-11T23:41:00Z https://community.blueprism.com/t5/Product-Forum/Write-Collection/m-p/53506#M8165 Hi roberto.m.chacur, This is because you have given invalid cell reference in the ""Write Collection"" action..check its value ...(cell starts with A1,B1 etc etc) hope this helps <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span> Thu, 12 Oct 2017 10:30:00 GMT https://community.blueprism.com/t5/Product-Forum/Write-Collection/m-p/53506#M8165 Anonymous 2017-10-12T10:30:00Z