Error when trying to expand column to new row.

[Anonymous]

Hi all,

I have a dataset that looks like this. Each cell can have multiple login and logout times corresponding to each other. (ie. login time 11:00:03 and logout time 13:29:42).

I used the code below to group the login and logout time together:
= Table.AddColumn(#"Promoted Headers", "Temp", each List.Zip( { Text.Split([Login Time],"#(lf)"), Text.Split([Logout Time],"#(lf)") }))

Next I clicked, expand to new rows and then extract values.

Finally, I split the columns by the delimiter to get the correct values:

However, when I click close and apply, i get this error:
OLE DB or ODBC error: [Expression.Error] We cannot convert the value null to type Text..

I cant figure out why as I have no null values in the 2 columns. The error occurs at the step where I expand to new rows. 

When I replicated the steps in excel's power query, it seems to work fine. Please help!

[v-yingjl · Accepted solution]

Hi @Anonymous ,

The query itself seems normal, how did you split columns and whether there is extra space in the source data when split column by space.

Perhaps you can consider share the whole query steps in Power Query.

Best Regards,
Community Support Team _ Yingjie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[lbendlin]

@Anonymous Please provide sanitized sample data that fully covers your issue. Paste the data into a table in your post or use one of the file services. Please show the expected outcome.